Patent ID: 8101156

Claim:
A method for manufacturing a biocompatiblc polymer, comprising copolymerizing a zwitterion monomer with a dihydroxyphenyl monomer to yield a thermoplastic polymer having the following chemical formula, in which, R 1 -R 4 are independently a methacryl, acryl, styryl, acrylamido, methacrylamido, sulfovinyl, amido, ester, ethyl, or propyl; R 5 is a hydrocarbon chain, cycloaliphatic group, ester group, amide group, thiol, sulfone, carbonate, saccharide, PEG, or combination thereof; R 6 includes a zwitterion group, a linker being a chain of 2-12 carbon atoms, and an ester or amide attachment to the methacryl group; wherein the zwitterion group is selected from the group consisting of phosphorylcholine, phosphoryl ethanolamine, phosphatidyl ethanolamine, phosphoethanolamine, and phosphatidyl serine; R 7 is a methyl, ethyl, or hydrogen group; n is in a range from about 0.005 to about 0.5; o is in a range from about 0.005 to about 0.4; p optionally included in a range from 0.005 to 0.25; q is in a range from about 0.005 to about 0.98; and r is optionally included in a range from about 0.005 to about 0.4.