USRE35407E - Azo dye polymers - Google Patents

Azo dye polymers Download PDF

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USRE35407E
USRE35407E US08/223,852 US22385294A USRE35407E US RE35407 E USRE35407 E US RE35407E US 22385294 A US22385294 A US 22385294A US RE35407 E USRE35407 E US RE35407E
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hydrogen
substituted
phenyl
alkyl
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Matthias Wiesenfeldt
Sabine Gruettner-Merten
Ruediger Sens
Karl-Heinz Etzbach
Heike Kilburg
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BASF SE
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
    • C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
    • C08F20/10—Esters
    • C08F20/34—Esters containing nitrogen, e.g. N,N-dimethylaminoethyl (meth)acrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F246/00—Copolymers in which the nature of only the monomers in minority is defined
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B69/00—Dyes not provided for by a single group of this subclass
    • C09B69/10—Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds
    • C09B69/106—Polymeric dyes; Reaction products of dyes with monomers or with macromolecular compounds containing an azo dye
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G02F1/355—Non-linear optics characterised by the materials used
    • G02F1/361—Organic materials
    • G02F1/3611—Organic materials containing Nitrogen
    • G02F1/3612—Heterocycles having N as heteroatom
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G02F1/355—Non-linear optics characterised by the materials used
    • G02F1/361—Organic materials
    • G02F1/3613—Organic materials containing Sulfur
    • G02F1/3614—Heterocycles having S as heteroatom
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/35—Non-linear optics
    • G02F1/355—Non-linear optics characterised by the materials used
    • G02F1/361—Organic materials
    • G02F1/3615—Organic materials containing polymers
    • G02F1/3617—Organic materials containing polymers having the non-linear optical group in a side chain

Definitions

  • the present invention relates to novel azo dye polymers containing as characteristic monomer units radicals of the formulae I, II, III and IV ##STR2## where D is the radical of a diazo component derived from a five-membered aromatic heterocyclic amine having one to three hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur in the heterocyclic ring and optionally fused to a benzene, thiophene, pyridine or pyrimidine ring.
  • R 1 and R 2 are each independently of the other hydrogen, C 1 -C 6 -alkyl or C 1 -C 6 -alkoxy optionally substituted by phenyl or C 1 -C 4 -alkoxy, and R 2 may also be C 1 -C 4 -alkanoylamino,
  • R 3 is hydrogen, C 1 -C 6 -alkyl, C 5 -C 7 -cycloalkyl or C 3 -C 4 -alkenyl,
  • R 4 is hydrogen, deuterium, methyl, trideuterated methyl or chlorine
  • R 5 is hydrogen or deuterium
  • Y 1 and Y 2 are each independently of the other C 2 -C 10 -alkylene optionally interrupted by 1 to 3 oxygen atoms in the other function or imino or C 1 -C 4 -alkylimino groups,
  • W is oxygen, imino or C 1 -C 4 -alkylimino
  • X is hydroxyl, C 1 -C 6 -alkoxy, trideuterated methoxy, 2,3-epoxypropoxy, phenoxy, amino or C 1 -C 4 -mono- or dialkylamino,
  • the proportion of monomer units of the formula I being from 1 to 100 mol %
  • the proportion of monomer units of the formula II being from 0 to 99 mol %
  • the proportion of monomer units of the formula III being from 0 to 99 mol %
  • the proportion of monomer units of the formula IV being from 0 to 75 mol %
  • each percentage being based on the polymer, and the average molecular weight of the polymer being from 1,000 to 100,000, to the use thereof in nonlinear optics and to the use of monomeric azo dyes for preparing the novel polymers.
  • Suitable radicals D in the formula I are derived for example from a heterocyclic amine of the pyrrole, furan, thiophene, pyrazole, imidazole, oxazole, isoxazole, thiazole, isothiazole, triazole, oxadiazole, thiadiazole, benzofuran, benzothiophene, benzimidazole, benzoxazole, benzothiazole, benzisothiazole, pyridothiophene, pyrimidothiophene, thienothiophene or thienothiazole series.
  • radicals D derived from a heterocyclic amine of the pyrrole, thiophene, pyrazole, thiazole, isothiazole, triazole, thiadiazole, benzothiophene, benzothiazole, benzisothiazole, pyridothiophene, pyrimidothiophene, thienothiophene or thienothiazole series.
  • radicals D derived from aminoheterocycles of the formulae ##STR3## where L 1 is nitro, cyano, C 1 -C 6 -alkanoyl, benzoyl, C 1 -C 6 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl or a radical of the formula --CH ⁇ T, where T is the radical of an acidic CH compound,
  • L 2 is hydrogen, C 1 -C 6 -alkyl, halogen, hydroxyl, mercapto, unsubstituted or phenyl- or C 1 -C 4 -alkoxy-substituted C 1 -C 6 -alkoxy, substituted or unsubstituted phenoxy, unsubstituted or phenyl-substituted C 1 -C 6 -alkylthio, substituted or unsubstituted phenylthio, C 1 -C 6 -alkylsulfonyl or substituted or unsubstituted phenylsulfonyl,
  • L 3 is cyano, C 1 -C 4 -alkoxycarbonyl or nitro
  • L 4 is hydrogen, C 1 -C 6 -alkyl or phenyl
  • L 5 is C 1 -C 6 -alkyl or phenyl
  • L 6 is cyano, C 1 -C 4 -alkoxycarbonyl, C 1 -C 6 -alkanoyl or halogen,
  • L 7 is nitro, cyano, C 1 -C 6 -alkanoyl, benzoyl, C 1 -C 6 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl or a radical of a formula --CH ⁇ T, where T is as defined above,
  • L 8 is hydrogen, C 1 -C 6 -alkyl, halogen, unsubstituted or phenyl- or C 1 -C 4 -alkoxy-substituted C 1 -C 6 -alkoxy, unsubstituted or phenyl-substituted C 1 -C 6 -alkylthio, substituted or unsubstituted phenylthio, C 1 -C 6 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl or C 1 -C 4 -alkoxycarbonyl,
  • L 9 is cyano, unsubstituted or phenyl-substituted C 1 -C 6 -alkyl, unsubstituted or phenyl-substituted C 1 -C 6 -alkylthio, substituted or unsubstituted phenyl, thienyl, C 1 -C 4 -alkylthienyl, pyridyl or C 1 -C 4 -alkylpyridyl,
  • L 10 is phenyl or pyridyl
  • L 11 is trifluoromethyl, nitro, C 1 -C 6 -alkyl, phenyl, unsubstituted or phenyl-substituted C 1 -C 6 -alkylthio or C 1 -C 4 -dialkylamino,
  • L 12 is C 1 -C 6 -alkyl, phenyl, 2-cyanoethylthio or 2-(C 1 -C 4 -alkoxycarbonyl)ethylthio,
  • L 13 is hydrogen, nitro or halogen
  • L 14 is hydrogen, cyano, nitro or halogen.
  • Any substituted phenyl appearing in the azo dye polymers according to the invention may have as substituents for example C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or halogen, in particular chlorine or bromine. These phenyl rings will in general have from 1 to 3 substituents.
  • Any alkyl, alkylene or alkenyl groups appearing in the abovementioned formulae may be not only straight-chain but also branched.
  • R 1 , R 2 , R 3 , L 2 , L 4 , L 5 , L 8 , L 9 , L 11 and L 12 are each for example methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, pentyl, isopentyl, neopentyl, tertpentyl, hexyl or 2-methylpentyl.
  • R 2 may also be for example formylamino, acetylamino, propionylamino or butynylamino.
  • L 9 may also be for example benzyl or 1- or 2-phenylethyl.
  • L 2 , L 8 , L 9 and L 11 may each also be for example methylthio, ethylthio, propylthio, isopropylthio, butylthio, isobutylthio, pentylthio, hexylthio, benzylthio or 1- or 2-phenylethylthio.
  • L 2 and L 8 may each also be for example phenylthio, 2-methylphenylthio, 2-methoxyphenylthio or 2-chlorophenylthio.
  • R 1 , R 2 , L 2 and L 8 and also X may each also be for example methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, pentyloxy, isopentyloxy, neopentyloxy, tert-pentyloxy, hexyloxy or 2-methylpentyloxy.
  • L 2 , L 8 , L 13 and L 14 and also L 6 may each also be for example fluorine, chlorine or bromine.
  • L 1 , L 2 and L 8 and also L 7 may each also be for example methylsulfonyl, ethylsulfonyl, propylsulfonyl, isopropylsulfonyl, butylsulfonyl, isobutylsulfonyl, secbutylsulfonyl, pentylsulfonyl, isopentylsulfonyl, neopentylsulfonyl, hexylsulfonyl, phenylsulfonyl, 2-methylphenylsulfonyl, 2-methoxyphenylsulfonyl or 2-chlorophenylsulfonyl.
  • L 6 and L 8 and also L 3 may each also be for example methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, isopropoxycarbonyl, butoxycarbonyl, isobutoxycarbonyl or sec-butoxycarbonyl.
  • R 1 , R 2 , L 2 and L 8 may each also be for example 2-methoxyethoxy, 2-ethoxyethoxy, 2- or 3-methoxypropoxy, 2- or 3-ethoxypropoxy, 2- or 4-methoxybutoxy, 2- or 4-ethoxybutoxy, 5-methoxypentyloxy, 5-ethoxypentyloxy, 6-methoxyhexyloxy, 6-ethoxyhexyloxy, benzyloxy or 1- or 2-phenylethoxy.
  • X may also be for example methylamino, ethylamino, propylamino, isopropylamino or butylamino.
  • L 11 and X may each also be for example dimethylamino, diethylamino, dipropylamino, diisopropylamino, dibutylamino or N-methyl-N-ethylamino.
  • L 12 may also be for example 2-methoxycarbonylethylthio or 2-ethoxycarbonylethylthio.
  • R 3 may also be for example cyclopentyl, cyclohexyl, cycloheptyl, allyl or methallyl.
  • L 9 may also be for example phenyl, 2-, 3- or 4-methylphenyl, 2,4-dimethylphenyl, 2-, 3- or 4-chlorophenyl, 2-, 3- or 4-methoxyphenyl, 2- or 3-methylthienyl or 2-, 3- or 4-methylpyridyl.
  • Y 1 and Y 2 are each for example (CH 2 ) 2 , (CH 2 ) 3 , (CH 2 ) 4 , (CH 2 ) 5 , (CH 2 ) 6 , (CH 2 ) 7 , (CH 2 ) 8 , (CH 2 ) 9 , (CH 2 ) 10 , CH(CH 3 )--CH 2 , CH(CH 3 )--(CH(CH 3 ), C 2 H 4 --O--C 2 H 4 , C 2 H 4 --NH--C 2 H 4 , C 2 H 4 --N(CH 3 )--C 2 H 4 , C 2 H 4 O--C 2 H 4 O--C 2 H 4 , C 2 H 4 --NH--C 2 H 4 --NH--C 2 H 4 or C 2 H 4 --N(CH 3 )--C 2 H 4 --N(CH 3 )--C 2 H 4 .
  • W is for example methylimino, ethylimino, propylimino, isopropylimino or butylimino.
  • L 1 , L 6 and L 7 may each also be for example formyl, acetyl, propionyl, butyryl, pentanoyl or hexanoyl.
  • L 1 or L 7 is the radical --CH ⁇ T wherein T is derived from an acidic CH compound H 2 T
  • suitable acidic CH compounds H 2 T are for example compounds of the formula ##STR4## where Z 1 is cyano, nitro, C 1 -C 4 -alkanoyl, substituted or unsubstituted benzoyl, C 1 -C 4 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl, carboxyl, C 1 -C 4 -alkoxycarbonyl, C 3 -C 4 -alkenyloxycarbonyl, phenoxycarbonyl, carbamoyl, mono- or di(C 1 -C 4 -alkyl)carbamoyl, substituted or unsubstituted phenylcarbamoyl, substituted or unsubstituted phenyl, 2-benzothiazolyl, 2-benzimidazolyl, 5-phenyl-1
  • Z 2 is C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or C 3 -C 4 -alkenyloxy,
  • Z 3 is C 1 -C 4 -alkoxycarbonyl, C 3 -C 4 -alkenyloxycarbonyl, phenylcarbamoyl or 2-benzimidazolyl,
  • Z 4 is cyano, C 1 -C 4 -alkoxycarbonyl or C 3 -C 4 -alkenyloxycarbonyl,
  • Z 5 is hydrogen or C 1 -C 6 -alkyl
  • Z 6 is hydrogen, C 1 -C 4 -alkyl or phenyl
  • Z 7 is C 1 -C 4 -alkyl.
  • Z 1 is cyano, C 1 -C 4 -alkanoyl, C 1 -C 4 -alkoxycarbonyl or C 3 -C 4 -alkenyloxycarbonyl
  • Z 2 is C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or C 3 -C 4 -alkenyloxy
  • Z 3 is C 1 -C 4 -alkoxycarbonyl or C 3 -C 4 -alkenyloxycarbonyl
  • Z 4 is cyano
  • Z 1 is cyano, C 1 -C 4 -alkoxycarbonyl or C 3 -C 4 -alkenyloxycarbonyl
  • Z 2 is C 1 -C 4 -alkoxy or C 3 -C 4 -alkenyloxy
  • Z 3 is C 1 -C 4 -alkoxycarbonyl or C 3 -C 4 -alkenyloxycarbonyl
  • Z 4 is cyano.
  • azo dye polymers which as characteristic monomer units contain radicals of the formula Ia ##STR5## where D, R 1 , R 2 , R 3 , R 4 , Y and W are each as defined above, and of the abovementioned formula II.
  • azo dye polymers where D in formula I is derived from an amine of the formula VIa, VIb, VIc, VId, VIe, VIf, VIm or VIn.
  • azo dye polymers in which the proportion of monomer units of the formula I is from 4 to 50, in particular from 8 to 25, mol %, the proportion of monomer units of the formula II is from 51 to 96, in particular from 75 to 92, mol %, the proportion of monomer units of the formula III is from 0 to 30, in particular from 0 to 15, mol % and the proportion of monomer units of the formula IV is from 0 to 50, in particular from 0 to 20 mol %, each percentage being based on the polymer, and the average molecular weight of the polymer is from 1500 to 50,000, in particular from 2000 to 25,000.
  • R 1 is hydrogen or C 1 -C 4 -alkoxy
  • R 2 is C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy or acetylamino,
  • R 3 is C 1 -C 4 -alkyl
  • R 4 is hydrogen or methyl
  • Y 1 is C 2 -C 8 -alkylene, and in the formula II
  • R 4 is hydrogen or methyl
  • X is C 1 -C 4 -alkoxy.
  • L 1 is nitro, cyano, C 1 -C 4 -alkanoyl or a radical of the formula --CH ⁇ T, where T is as defined above,
  • L 2 is hydrogen, C 1 -C 4 -alkyl or halogen
  • L 3 is cyano, C 1 -C 4 -alkoxycarbonyl or nitro
  • L 7 is nitro, cyano, C 1 -C 4 -alkanoyl or a radical of the formula --CH ⁇ T, where T is as defined above, and
  • L 8 is hydrogen, C 1 -C 4 -alkyl or halogen.
  • novel polymers can be prepared by methods known per se, for example as described in J. Polymer Sci. (loc. cit.).
  • an azo dye of the formula V is reacted with an acryloyl compound of the formula VIII ##STR7## where R 4 and X are each as defined above, styrene and a cinnamic ester of the formula IX ##STR8## where Y 2 and R 4 are each as defined above, in the above-mentioned molar ratio in an inert solvent (for example toluene or xylene) in the presence of a free radical initiator (for example azobisisobutyronitrile).
  • an inert solvent for example toluene or xylene
  • a free radical initiator for example azobisisobutyronitrile
  • azo dyes of the formula V are known per se and described for example in EP-A-201,896, DE-A-3,108,077, U.S. Pat. No. 4,843,153 or GB-A-1,546,803 or can be obtained by the methods mentioned therein.
  • the azo dye polymers of the invention are advantageously suitable for use in nonlinear optical systems (see for example Chemistry and Industry, Oct. 1, 1990, pages 600 to 608).
  • electrooptical modulators for example Mach-Zehnder Interferometers
  • optical switches for example Mach-Zehnder Interferometers
  • frequency mixing or waveguides for example Mach-Zehnder Interferometers
  • the layers which contain the polymers of the present invention are prepared in the conventional manner, for example by wet or spin coating with a 5-15% by weight solution of the polymer in a solvent (for example tetrachloroethane, methylene chloride or tetrahydrofuran).
  • a solvent for example tetrachloroethane, methylene chloride or tetrahydrofuran.
  • novel polymers can also be crosslinked photochemically, thermally or by the action of electron beams.
  • novel polymers are notable for good processibility into thin films, high purity a narrow molecular weight distribution, good orientation in an electric field, good long-term stability, high glass transition temperatures and a high electro-optical coefficient.
  • the resulting diazomium salt solution was added dropwise to 10.9 g (0.036 mol) of the coupling component described under a) in 300 g of ice-water, 20 ml of concentrated hydrochloric acid and 1 g of amidosulfuric acid at ⁇ 5° C. and at a pH 1-1.5. The pH was maintained at 1-1.5 by the dropwise addition of 20% by weight sodium hydroxide solution. After stirring overnight at room temperature the precipitated dye was filtered off with suction, washed with water, dried and chromatographed twice over silica gel using 95:5 v/v hexane/acetone as mobile phase.
  • indices l, m, p and q express the mole percentages of the respective monomer units, based on the polymer.
  • a monomer solution comprising n mol % of dye monomer and l+p+q mol % of comonomer in absolute toluene was admixed with 2 mol % of azobisisobutyronitrile. After argon had been passed through the monomer mixture for 10 minutes, the monomer mixture was thermostabilized at 50° C. The polymerization was complete after 100 hours. The polymers were precipitated with methanol and reprecipitated twice from hexane/methanol.

Abstract

Azo dye polymers useful in nonlinear optics contain as characteristic monomer units radicals of the formulae I, II, III and IV ##STR1## where D is the radical of a heterocyclic diazo component,
R1 and R2 are each hydrogen, C1 -C6 -alkyl or substituted or unsubstituted C1 -C6 -alkoxy, and R2 may also be C1 -C4 -alkanoylamino,
R3 is hydrogen, C1 -C6 -alkyl, C5 -C7 -cycloalkyl or C3 -C4 -alkenyl,
R4 is hydrogen, deuterium, methyl, trideuterated methyl or chlorine,
R5 is hydrogen or deuterium,
Y1 and Y2 are each substituted or unsubstituted C2 -C10 -alkylene,
W is oxygen, imino or C1 -C4 -alkylimino, and
X is hydroxyl, substituted or unsubstituted C1 -C6 -alkoxy, phenoxy, amino or mono- or di(C1 -C4 -alkyl)amino,
and have an average molecular weight of from 1,000 to 100,000.

Description

The present invention relates to novel azo dye polymers containing as characteristic monomer units radicals of the formulae I, II, III and IV ##STR2## where D is the radical of a diazo component derived from a five-membered aromatic heterocyclic amine having one to three hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur in the heterocyclic ring and optionally fused to a benzene, thiophene, pyridine or pyrimidine ring.
R1 and R2 are each independently of the other hydrogen, C1 -C6 -alkyl or C1 -C6 -alkoxy optionally substituted by phenyl or C1 -C4 -alkoxy, and R2 may also be C1 -C4 -alkanoylamino,
R3 is hydrogen, C1 -C6 -alkyl, C5 -C7 -cycloalkyl or C3 -C4 -alkenyl,
R4 is hydrogen, deuterium, methyl, trideuterated methyl or chlorine,
R5 is hydrogen or deuterium,
Y1 and Y2 are each independently of the other C2 -C10 -alkylene optionally interrupted by 1 to 3 oxygen atoms in the other function or imino or C1 -C4 -alkylimino groups,
W is oxygen, imino or C1 -C4 -alkylimino, and
X is hydroxyl, C1 -C6 -alkoxy, trideuterated methoxy, 2,3-epoxypropoxy, phenoxy, amino or C1 -C4 -mono- or dialkylamino,
the proportion of monomer units of the formula I being from 1 to 100 mol %, the proportion of monomer units of the formula II being from 0 to 99 mol %, the proportion of monomer units of the formula III being from 0 to 99 mol % and the proportion of monomer units of the formula IV being from 0 to 75 mol %, each percentage being based on the polymer, and the average molecular weight of the polymer being from 1,000 to 100,000, to the use thereof in nonlinear optics and to the use of monomeric azo dyes for preparing the novel polymers.
J. Polymer Sci., Part A, Polymer Chem. 28 (1990), 1-13, disclosed polymers with azo dye chromophores in the side chains. The azo dyes there are members of the azobenzene series. However, it has been found that such polymers are still deficient when used in nonlinear optical systems.
It is an object of the present invention to provide novel polymers which likewise posses donor/acceptor-substituted azo dyes as chromophore in the side chain and which shall be advantageous for use in nonlinear optical systems.
We have found that this object is achieved by the azo dye polymers defined at the beginning.
Suitable radicals D in the formula I are derived for example from a heterocyclic amine of the pyrrole, furan, thiophene, pyrazole, imidazole, oxazole, isoxazole, thiazole, isothiazole, triazole, oxadiazole, thiadiazole, benzofuran, benzothiophene, benzimidazole, benzoxazole, benzothiazole, benzisothiazole, pyridothiophene, pyrimidothiophene, thienothiophene or thienothiazole series.
Of particular suitability are those radicals D derived from a heterocyclic amine of the pyrrole, thiophene, pyrazole, thiazole, isothiazole, triazole, thiadiazole, benzothiophene, benzothiazole, benzisothiazole, pyridothiophene, pyrimidothiophene, thienothiophene or thienothiazole series.
Of particular note are radicals D derived from aminoheterocycles of the formulae ##STR3## where L1 is nitro, cyano, C1 -C6 -alkanoyl, benzoyl, C1 -C6 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl or a radical of the formula --CH═T, where T is the radical of an acidic CH compound,
L2 is hydrogen, C1 -C6 -alkyl, halogen, hydroxyl, mercapto, unsubstituted or phenyl- or C1 -C4 -alkoxy-substituted C1 -C6 -alkoxy, substituted or unsubstituted phenoxy, unsubstituted or phenyl-substituted C1 -C6 -alkylthio, substituted or unsubstituted phenylthio, C1 -C6 -alkylsulfonyl or substituted or unsubstituted phenylsulfonyl,
L3 is cyano, C1 -C4 -alkoxycarbonyl or nitro,
L4 is hydrogen, C1 -C6 -alkyl or phenyl,
L5 is C1 -C6 -alkyl or phenyl,
L6 is cyano, C1 -C4 -alkoxycarbonyl, C1 -C6 -alkanoyl or halogen,
L7 is nitro, cyano, C1 -C6 -alkanoyl, benzoyl, C1 -C6 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl or a radical of a formula --CH═T, where T is as defined above,
L8 is hydrogen, C1 -C6 -alkyl, halogen, unsubstituted or phenyl- or C1 -C4 -alkoxy-substituted C1 -C6 -alkoxy, unsubstituted or phenyl-substituted C1 -C6 -alkylthio, substituted or unsubstituted phenylthio, C1 -C6 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl or C1 -C4 -alkoxycarbonyl,
L9 is cyano, unsubstituted or phenyl-substituted C1 -C6 -alkyl, unsubstituted or phenyl-substituted C1 -C6 -alkylthio, substituted or unsubstituted phenyl, thienyl, C1 -C4 -alkylthienyl, pyridyl or C1 -C4 -alkylpyridyl,
L10 is phenyl or pyridyl,
L11 is trifluoromethyl, nitro, C1 -C6 -alkyl, phenyl, unsubstituted or phenyl-substituted C1 -C6 -alkylthio or C1 -C4 -dialkylamino,
L12 is C1 -C6 -alkyl, phenyl, 2-cyanoethylthio or 2-(C1 -C4 -alkoxycarbonyl)ethylthio,
L13 is hydrogen, nitro or halogen, and
L14 is hydrogen, cyano, nitro or halogen.
Any substituted phenyl appearing in the azo dye polymers according to the invention may have as substituents for example C1 -C4 -alkyl, C1 -C4 -alkoxy or halogen, in particular chlorine or bromine. These phenyl rings will in general have from 1 to 3 substituents.
Any alkyl, alkylene or alkenyl groups appearing in the abovementioned formulae may be not only straight-chain but also branched.
R1, R2, R3, L2, L4, L5, L8, L9, L11 and L12 are each for example methyl, ethyl, propyl, isopropyl, butyl, isobutyl, sec-butyl, pentyl, isopentyl, neopentyl, tertpentyl, hexyl or 2-methylpentyl.
R2 may also be for example formylamino, acetylamino, propionylamino or butynylamino.
L9 may also be for example benzyl or 1- or 2-phenylethyl.
L2, L8, L9 and L11 may each also be for example methylthio, ethylthio, propylthio, isopropylthio, butylthio, isobutylthio, pentylthio, hexylthio, benzylthio or 1- or 2-phenylethylthio.
L2 and L8 may each also be for example phenylthio, 2-methylphenylthio, 2-methoxyphenylthio or 2-chlorophenylthio.
R1, R2, L2 and L8 and also X may each also be for example methoxy, ethoxy, propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, pentyloxy, isopentyloxy, neopentyloxy, tert-pentyloxy, hexyloxy or 2-methylpentyloxy.
L2, L8, L13 and L14 and also L6 may each also be for example fluorine, chlorine or bromine.
L1, L2 and L8 and also L7 may each also be for example methylsulfonyl, ethylsulfonyl, propylsulfonyl, isopropylsulfonyl, butylsulfonyl, isobutylsulfonyl, secbutylsulfonyl, pentylsulfonyl, isopentylsulfonyl, neopentylsulfonyl, hexylsulfonyl, phenylsulfonyl, 2-methylphenylsulfonyl, 2-methoxyphenylsulfonyl or 2-chlorophenylsulfonyl.
L6 and L8 and also L3 may each also be for example methoxycarbonyl, ethoxycarbonyl, propoxycarbonyl, isopropoxycarbonyl, butoxycarbonyl, isobutoxycarbonyl or sec-butoxycarbonyl.
R1, R2, L2 and L8 may each also be for example 2-methoxyethoxy, 2-ethoxyethoxy, 2- or 3-methoxypropoxy, 2- or 3-ethoxypropoxy, 2- or 4-methoxybutoxy, 2- or 4-ethoxybutoxy, 5-methoxypentyloxy, 5-ethoxypentyloxy, 6-methoxyhexyloxy, 6-ethoxyhexyloxy, benzyloxy or 1- or 2-phenylethoxy.
X may also be for example methylamino, ethylamino, propylamino, isopropylamino or butylamino.
L11 and X may each also be for example dimethylamino, diethylamino, dipropylamino, diisopropylamino, dibutylamino or N-methyl-N-ethylamino.
L12 may also be for example 2-methoxycarbonylethylthio or 2-ethoxycarbonylethylthio.
R3 may also be for example cyclopentyl, cyclohexyl, cycloheptyl, allyl or methallyl.
L9 may also be for example phenyl, 2-, 3- or 4-methylphenyl, 2,4-dimethylphenyl, 2-, 3- or 4-chlorophenyl, 2-, 3- or 4-methoxyphenyl, 2- or 3-methylthienyl or 2-, 3- or 4-methylpyridyl.
Y1 and Y2 are each for example (CH2)2, (CH2)3, (CH2)4, (CH2)5, (CH2)6, (CH2)7, (CH2)8, (CH2)9, (CH2)10, CH(CH3)--CH2, CH(CH3)--(CH(CH3), C2 H4 --O--C2 H4, C2 H4 --NH--C2 H4, C2 H4 --N(CH3)--C2 H4, C2 H4 O--C2 H4 O--C2 H4, C2 H4 --NH--C2 H4 --NH--C2 H4 or C2 H4 --N(CH3)--C2 H4 --N(CH3)--C2 H4.
W is for example methylimino, ethylimino, propylimino, isopropylimino or butylimino.
L1, L6 and L7 may each also be for example formyl, acetyl, propionyl, butyryl, pentanoyl or hexanoyl.
When L1 or L7 is the radical --CH═T wherein T is derived from an acidic CH compound H2 T, include suitable acidic CH compounds H2 T are for example compounds of the formula ##STR4## where Z1 is cyano, nitro, C1 -C4 -alkanoyl, substituted or unsubstituted benzoyl, C1 -C4 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl, carboxyl, C1 -C4 -alkoxycarbonyl, C3 -C4 -alkenyloxycarbonyl, phenoxycarbonyl, carbamoyl, mono- or di(C1 -C4 -alkyl)carbamoyl, substituted or unsubstituted phenylcarbamoyl, substituted or unsubstituted phenyl, 2-benzothiazolyl, 2-benzimidazolyl, 5-phenyl-1,3,4-thiadiazol-2-yl or 2-hydroxyquinoxalin-3-yl,
Z2 is C1 -C4 -alkyl, C1 -C4 -alkoxy or C3 -C4 -alkenyloxy,
Z3 is C1 -C4 -alkoxycarbonyl, C3 -C4 -alkenyloxycarbonyl, phenylcarbamoyl or 2-benzimidazolyl,
Z4 is cyano, C1 -C4 -alkoxycarbonyl or C3 -C4 -alkenyloxycarbonyl,
Z5 is hydrogen or C1 -C6 -alkyl,
Z6 is hydrogen, C1 -C4 -alkyl or phenyl and
Z7 is C1 -C4 -alkyl.
Preference must be given here to the radical derived from compounds of the formula VIIa, VIIb or VIIc wherein Z1 is cyano, C1 -C4 -alkanoyl, C1 -C4 -alkoxycarbonyl or C3 -C4 -alkenyloxycarbonyl, Z2 is C1 -C4 -alkyl, C1 -C4 -alkoxy or C3 -C4 -alkenyloxy, Z3 is C1 -C4 -alkoxycarbonyl or C3 -C4 -alkenyloxycarbonyl, and Z4 is cyano
Particular emphasis must be given here to the radical derived from compounds of the formula VIIa, VIIb or VIIc wherein Z1 is cyano, C1 -C4 -alkoxycarbonyl or C3 -C4 -alkenyloxycarbonyl, Z2 is C1 -C4 -alkoxy or C3 -C4 -alkenyloxy, Z3 is C1 -C4 -alkoxycarbonyl or C3 -C4 -alkenyloxycarbonyl, and Z4 is cyano.
Preference is given to azo dye polymers which as characteristic monomer units contain radicals of the formula Ia ##STR5## where D, R1, R2, R3, R4, Y and W are each as defined above, and of the abovementioned formula II.
Preference is further given to azo dye polymers where D in formula I is derived from an amine of the formula VIa, VIb, VIc, VId, VIe, VIf, VIm or VIn.
Preference is further given to azo dye polymers in which the proportion of monomer units of the formula I is from 4 to 50, in particular from 8 to 25, mol %, the proportion of monomer units of the formula II is from 51 to 96, in particular from 75 to 92, mol %, the proportion of monomer units of the formula III is from 0 to 30, in particular from 0 to 15, mol % and the proportion of monomer units of the formula IV is from 0 to 50, in particular from 0 to 20 mol %, each percentage being based on the polymer, and the average molecular weight of the polymer is from 1500 to 50,000, in particular from 2000 to 25,000.
Of particular suitability are azo dye polymers in which in the formula I
R1 is hydrogen or C1 -C4 -alkoxy,
R2 is C1 -C4 -alkyl, C1 -C4 -alkoxy or acetylamino,
R3 is C1 -C4 -alkyl,
R4 is hydrogen or methyl, and
Y1 is C2 -C8 -alkylene, and in the formula II
R4 is hydrogen or methyl, and
X is C1 -C4 -alkoxy.
Particular preference is given to azo dye polymers in which D is derived from amines of the thiophene or thiazole series, in particular from those of the formula VIb or VId
Of special interest are azo dye polymers in which D is derived from an amine of the formula VIb or VId where
L1 is nitro, cyano, C1 -C4 -alkanoyl or a radical of the formula --CH═T, where T is as defined above,
L2 is hydrogen, C1 -C4 -alkyl or halogen,
L3 is cyano, C1 -C4 -alkoxycarbonyl or nitro,
L7 is nitro, cyano, C1 -C4 -alkanoyl or a radical of the formula --CH═T, where T is as defined above, and
L8 is hydrogen, C1 -C4 -alkyl or halogen.
To prepare the polymers of the invention, it is advantageous to employ azo dyes of the formula V ##STR6## where D, R1, R2, R3, R4, Y and W are each as defined above.
The novel polymers can be prepared by methods known per se, for example as described in J. Polymer Sci. (loc. cit.).
Conveniently, an azo dye of the formula V is reacted with an acryloyl compound of the formula VIII ##STR7## where R4 and X are each as defined above, styrene and a cinnamic ester of the formula IX ##STR8## where Y2 and R4 are each as defined above, in the above-mentioned molar ratio in an inert solvent (for example toluene or xylene) in the presence of a free radical initiator (for example azobisisobutyronitrile).
The azo dyes of the formula V are known per se and described for example in EP-A-201,896, DE-A-3,108,077, U.S. Pat. No. 4,843,153 or GB-A-1,546,803 or can be obtained by the methods mentioned therein.
The azo dye polymers of the invention are advantageously suitable for use in nonlinear optical systems (see for example Chemistry and Industry, Oct. 1, 1990, pages 600 to 608).
They are particularly suitable for use in communications technology, electrooptical modulators (for example Mach-Zehnder Interferometers), optical switches, frequency mixing or waveguides.
The layers which contain the polymers of the present invention are prepared in the conventional manner, for example by wet or spin coating with a 5-15% by weight solution of the polymer in a solvent (for example tetrachloroethane, methylene chloride or tetrahydrofuran).
Given a suitable substitution pattern (for example an epoxy structure) the novel polymers can also be crosslinked photochemically, thermally or by the action of electron beams.
The novel polymers are notable for good processibility into thin films, high purity a narrow molecular weight distribution, good orientation in an electric field, good long-term stability, high glass transition temperatures and a high electro-optical coefficient.
The Examples which follow will further illustrate the invention.
I. PREPARATION OF MONOMERIC AZO DYES Dye 1 a) Preparation of Coupling Component
421 g (3.05 mol) of potassium carbonate were suspended in 240 ml of water together with 40 g (0.12 mol) of potassium iodide. With continuous stirring 169 g (1.2 mol) of N-ethyl-m-toluidine in 240 ml of isobutanol were added, followed by 260 g (1.8 mol) of 6-chlorohexanol. Then the reaction mixture was heated to the boil. After 12 hours under reflux, the reaction mixture was cooled down to room temperature, 400 ml of water were added, and the aqueous phase was separated off. The organic phase was washed three times with 400 ml of water each time and dried over sodium sulfate, and the solvent was removed under reduced pressure. The residual oil was subjected to fractional distillation (157°-158° C. at 1.0 mbar). Yield: 231 g (82%).
47 g (0.2 mol) of N-ethyl-N-(6-hydroxyhexyl)-m-toluidine were dissolved in 600 ml of dichloromethane. 42 ml of triethylamine and 2.4 g of hydroquinone were added. The reaction solution was cooled down to 0°-5° C. and 38 ml (0.4 mol) of methacryloyl chloride in 100 ml of dichloromethane were gradually added dropwise. This was followed by 2 hours stirring at that temperature, warming to room temperature and a further 50 hours' stirring. As workup, the organic phase was washed with 300 ml of saturated sodium bicarbonate solution and then twice with 300 mol of sodium chloride solution each time. After drying over sodium sulfate and concentrating of the solvent, the crude produce was purified by column chromatography over silica gel using 94:5 v/v toluene/methanol as mobile phase. Yield: 44 g (71%) of the aniline of the formula ##STR9##
b) Preparation of Azo Dye
6.4 (0.035 mol) of 2-amino-4-chloro-3,5-dicyanothiophene were suspended in 100 ml of 17:3 v/v glacial acetic acid/propionic acid. Then 14 ml of 85% by weight sulfuric acid were added dropwise at room temperature and 6 ml of nitrosylsulfuric acid dropwise at 0° to 5° C. After stirring at from 0° to 5° C. for 3 hours, the resulting diazomium salt solution was added dropwise to 10.9 g (0.036 mol) of the coupling component described under a) in 300 g of ice-water, 20 ml of concentrated hydrochloric acid and 1 g of amidosulfuric acid at <5° C. and at a pH 1-1.5. The pH was maintained at 1-1.5 by the dropwise addition of 20% by weight sodium hydroxide solution. After stirring overnight at room temperature the precipitated dye was filtered off with suction, washed with water, dried and chromatographed twice over silica gel using 95:5 v/v hexane/acetone as mobile phase.
Yield: 10 g (57%) of the dye of the formula ##STR10## C25 H28 N5 SO2 Cl (498.0)
calculated: C, 60.29; H, 5.67; N, 14.06; S, 6.43; O, 6.43.
found: C, 60.31; H, 5.75; N, 13.99; S, 6.40; O, 6.43.
The same method gives the dyes of the formula ##STR11## listed below in Table 1.
                                  TABLE 1                                 
__________________________________________________________________________
Dye No                                                                    
     D                     Q.sup.1                                        
                               Q.sup.2                                    
                                   Q.sup.3                                
                                       n                                  
__________________________________________________________________________
 2                                                                        
      ##STR12##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
 3                                                                        
      ##STR13##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       6                                  
 4                                                                        
      ##STR14##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
 5                                                                        
      ##STR15##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
 6                                                                        
      ##STR16##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
 7                                                                        
      ##STR17##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
 8                                                                        
      ##STR18##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       6                                  
 9                                                                        
      ##STR19##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
10                                                                        
      ##STR20##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
11                                                                        
      ##STR21##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
12                                                                        
      ##STR22##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
13                                                                        
      ##STR23##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       6                                  
14                                                                        
      ##STR24##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       6                                  
15                                                                        
      ##STR25##            H   C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       2                                  
16                                                                        
      ##STR26##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       6                                  
17                                                                        
      ##STR27##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       6                                  
18                                                                        
      ##STR28##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       6                                  
19                                                                        
      ##STR29##            CH.sub.3                                       
                               C.sub.2 H.sub.5                            
                                   CH.sub.3                               
                                       6                                  
__________________________________________________________________________
II) PREPARATION OF POLYMER
General polymerization method for preparing polyacrylates of the following formula: ##STR30##
(The indices l, m, p and q express the mole percentages of the respective monomer units, based on the polymer.)
In a Schlenk vessel, a monomer solution comprising n mol % of dye monomer and l+p+q mol % of comonomer in absolute toluene was admixed with 2 mol % of azobisisobutyronitrile. After argon had been passed through the monomer mixture for 10 minutes, the monomer mixture was thermostabilized at 50° C. The polymerization was complete after 100 hours. The polymers were precipitated with methanol and reprecipitated twice from hexane/methanol. (If monomer is still present, it can be separated off by column chromatography over silica gel, for example using 9:1 v/v toluene/ethyl acetate as mobile phase.) After the solvent had been removed, the polymer was dried in a high vacuum. The quantitative composition of the copolymers was determined by means of UV spectroscopy and elemental analysis. The molecular weights were determined by gel permeation chromatography. The glass transition temperature of the polymer was determined by differential scanning calorimetry.
                                  TABLE 2                                 
__________________________________________________________________________
                                    Average                               
Example                          Dye                                      
                                    molecular                             
                                          T.sub.g                         
No   l  m  p  q  Q.sup.4                                                  
                    Q.sup.5   Q.sup.6                                     
                                 No weight                                
                                          [°C.]                    
__________________________________________________________________________
 1   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  9  16807 125                             
 2   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  3  22491 120                             
 3   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  5  11594 151                             
 4   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  10  3770 105                             
 5   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  11  2661  95                             
 6   80 20 0  0  CH.sub.3                                                 
                    CH.sub.3  H  2  13072 150                             
 7   80 20 0  0  CH.sub.3                                                 
                    CH.sub.3  H  3  11062 155                             
 8   88 12 0  0  CH.sub.3                                                 
                    CH.sub.3  H  3  11489 145                             
 9   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  6                                        
10   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  13 14685  86                             
11   90 10 0  0  CH.sub.3                                                 
                     ##STR31##                                            
                              H  2  13434 125                             
12   90 10 0  0  CD.sub.3                                                 
                    CD.sub.3  D  3  18384 130                             
13   80 10 0  10 CH.sub.3                                                 
                    CH.sub.3  H  3                                        
14   80 10 10 0  CH.sub.3                                                 
                    CH.sub.3  H  3   2877                                 
15   50 50 0  0  CH.sub.3                                                 
                    CH.sub.3  H  3                                        
16    0 100                                                               
           0  0  CH.sub.3                                                 
                    CH.sub.3  H  3                                        
17   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  17        90                             
18   90 10 0  0  CH.sub.3                                                 
                    CH.sub.3  H  18       100                             
__________________________________________________________________________

Claims (3)

    We claim: .[.1. An azo dye polymer containing as characteristic monomer unit radicals of the formulae I, II, III and IV ##STR32## where D is the radical of the diazo component derived from a five-membered aromatic heterocyclic amine having one to three hetero atoms selected from the group consisting of nitrogen, oxygen and sulfur in the heterocyclic ring and optionally fused to a benzene, thiophene, pyridine or pyrimidine ring,
  1. molecular weight of the polymer being from 1,000 to 100,000..]..[.2. An azo dye polymer as claimed in claim 1, wherein D is derived from a heterocyclic amine of the pyrrole, furan, thiophene, pyrazole, imidazole, oxazole, isoxazole, thiazole, isothiazole, triazole, oxadiazole, thiadiazole, benzofuran, benzothiophene, benzimidazole, benzoxazole, benzothiazole, benzoisothiazole, pyridothiophene, pyrimidithiophene,
  2. thienothiophene or thienothiazole series..].3. An azo dye polymer as claimed in claim 1, wherein in formula (I) D is ##STR33## R1 is hydrogen, R2 is methyl, R3 is ethyl, Y1 is
  3. hexylene, W is oxygen and R4 is methyl. .Iadd.4. An azo dye polymer containing as characteristic monomer units radicals of the formulae I, II, III and IV ##STR34## wherein D is the radical of a diazo component derived from a compound selected from the group consisting of: ##STR35## wherein .sup. 1 is nitro, cyano, C1 -C6 -alkanoyl, benzoyl, C1 -C6 -alkylsulfonyl, substituted or unsubstituted phenylsulfonyl or a radical of the formula --CH═T, where T is the radical of an acidic CH compound,
    .sup. 2 is hydrogen, C1 -C6 -alkyl, halogen, hydroxyl, mercapto, unsubstituted or phenyl- or C1 -C4 -alkoxy-substituted C1 -C6 -alkoxy, substituted or unsubstituted phenoxy, unsubstituted or phenyl-substituted C1 -C6 -alkylthio, substituted or unsubstituted phenylthio, C1 -C6 -alkylsulfonyl or substituted or unsubstituted phenylsulfonyl,
    13 is cyano, C1 -C4 -alkoxycarbonyl or nitro,
    14 is hydrogen, C1 -C6 -alkyl or phenyl,
    15 is C1 -C6 -alkyl or phenyl,
    16 is cyano, C1 -C4 -alkoxycarbonyl, C1 -C6 -alkanoyl or halogen,
    110 is phenyl or pyridyl,
    111 is trifluoromethyl, nitro C1 -C6 -alkyl, phenyl, unsubstituted or phenyl-substituted C1 -C6 -alkylthio or C1 -C4 -dialkylamino,
    112 is C1 -C6 -alkyl, phenyl, 2-cyanoethylthio or 2-(C1 -C4 -alkoxycarbonyl)ethylthio, and
    113 is hydrogen, nitro or halogen;
    R1 and R2 are each independently of the other hydrogen, C1 -C6 -alkyl or C1 -C6 -alkoxy optionally substituted by phenyl or C1 -C4 -alkoxy, and R2 may also be C1 -C4 -alkanoylamino,
    R3 is hydrogen, C1 -C6 -alkyl, C5 -C7 -cycloalkyl or C3 -C4 -alkenyl,
    R4 is hydrogen, deuterium, methyl, trideuterated methyl or chlorine,
    R5 is hydrogen or deuterium,
    Y1 and Y2 are each independently of the other C2 -C10 -alkylene optionally interrupted by 1 to 3 oxygen atoms in the ether function of imino or C1 -C4 -alkylimino groups,
    W is oxygen, imino or C1 -C4 -alkylimino, and
    X is hydroxyl, C1 -C6 -alkoxy, trideuterated methoxy, 2,3-epoxypropoxy, phenoxy, amino or C1 -C4 -mono- or -dialkylamino, the proportion of monomer units of the formula I being from 1 to 100 mol %, the proportion of monomer units of the formula II being from 0 to 99 mol %, the proportion of monomer units of the formula III being from 0 to 99 mol % and the proportion of monomer units of the formula IV being from 0 to 75 mol %, each percentage being based on the polymer, and the average molecular weight of the polymer being from 1,000 to 100,000. .Iaddend.
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US5461131A (en) 1995-10-24
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