Patent ID: 8975346
Filing Date: 2015-03-10
Classification: C08F,C08G

Abstract:
1. A method for preparing a block copolymer comprising: a. providing a telechelic polycarbonate polymer with terminal hydroxyl groups; b. esterifying the hydroxyl groups by reaction of the telechelic polycarbonate polymer with an acid halide having a structure represented by a formula: c. thereby yielding a telechelic polycarbonate macroinitiator having a structure represented by a formula: d. reacting the telechelic polycarbonate macroinitiator with a vinyl monomer by atom transfer radical polymerization; and e. thereby yielding a block copolymer wherein the molar ratio of the vinyl monomer, the telechelic polycarbonate macroinitiator, the catalyst, and the catalyst ligand is about 200:1:1:2.5.