Water soluble macromers are modified by addition of free radical polymerizable groups, such as those containing a carbon-carbon double or triple bond, which can be polymerized under mild conditions to encapsulate tissues, cells, or biologically active materials. The polymeric materials are particularly...http://www.google.com.au/patents/US6632446?utm_source=gb-gplus-sharePatent US6632446 - Coating substrates by polymerizing macromers having free radical-polymerizable substituents
