| abstract |
Methods for preparation of functionalized polyvinylpyrrolidone with polyme.pi.zabl.beta. functions and amphipathic polydimethylsiloxane-PVP block copolymers A (meth)acrylated polyvinylpyrrolidone compound and a (meth)acrylamide-functionalized polyvinylpyrrolidone structures are disclosed The block copolymers are useful as biomatenal components in biomedical devices They provide improved wettability, lublicity, and material compatibility to the biomedical device, e g, ophthalmic lenses |