Patent ID: 7927621

Claim:
A poly(thioester amide) copolymer wherein the copolymer comprises thioester units and amide units in the backbone of the copolymer; and wherein the thioester units comprise a structure of Formula I: wherein R 1 is an aliphatic group, wherein R 2 is a straight chained aliphatic group, a branch chained aliphatic group, a cyclic aliphatic group, an aliphatic group including heteroatom(s) selected from oxygen, F, Cl, Br, I,S ,N ,phenyl, naphthyl, or an aliphatic group having substituent(s) selected from alkyl, F, Cl, Br, I, carboxyl, hydroxyl, phosphoryl, sulfonyl, carbonyl, amino, amide, ether, nitro, azo, or combinations thereof, and wherein n is a positive integer from 1 to about 10,000.