Patent ID: 6727322
Filing Date: 2004-04-27
Classification: C08F,Y10S

Abstract:
An amphiphilic network comprising the reaction product of hydrophobic crosslinking agents and hydrophilic monomers, wherein said hydrophobic crosslinking agents are multi-arm multi-telechelic polyisobutylene stars having acrylate or methacrylate end caps and represented by formula (I): wherein R1 is polyisobutylene represented by formula (II): wherein x is the degree of polymerization of said polyisobutylene;wherein R2 is either H or CH3; wherein A is a moiety that connects R1 to said acrylate or methacrylate end caps; wherein n is an integer from 4 to 16; and wherein said hydrophilic monomers are derived from an acrylate selected from the group consisting of formulas (III), (IV) and (V): wherein R3 is hydrogen or methyl, R4 is an alkylene group having from about 2 to about 4 carbon atoms, and R5 and R6 may be the same or different and each is hydrogen or an alkyl radical having 1 to about 4 carbon atoms.