Patent ID: 8550256

Claim:
A method of photo-grafting onto a surface of a membrane a polymer selected from the group consisting of: (A) wherein, in Structure 1A: x 1 ≧2 and y 1 ≧1; R 1 and R 2 are independently selected from the group consisting of CH 3 and H; R 3 is independently selected from the group consisting of poly(oxyalkylene), quaternary ammonium salts, pyridinium salts, sulfonium salts, sulfobetaines, carboxybetaines, alcohols, phenols, tertiary amines, aryl groups; linear, branched and cyclic alkylenes; linear, branched and cyclic heteroalkylenes; linear, branched and cyclic fluoroalkylenes; and siloxyl; R 4 is independently selected from the group consisting of linear, branched, and cyclic alkylenes; linear, branched and cyclic hetroalkylenes; linear, branched and cyclic fluoroalkylenes; phenyl; and siloxyl; and z 1 is 0 or 1; and; (B) wherein, in Structure 1B: x 2 ≧2 and y 2 ≧1; R 5 and R 6 are independently selected from the group consisting of CH 3 and H; R 7 is independently selected from the group consisting of poly(oxyalkylene), quaternary ammonium salts, pyridinium salts, sulfonium salts, sulfobetaines, carboxybetaines, alcohols, phenols, tertiary amines, aryl groups; linear, branched and cyclic alkylenes; linear, branched and cyclic heteroalkylenes; linear, branched and cyclic fluoroalkylenes; and siloxyl; and z 2 is 0 or 1.