Patent ID: 8030436

Claim:
A poly(ester-amide) having the formula: wherein: m is an integer from 0 to about 200; n is an integer from 0 to about 200; p is an integer from 1 to about 3000; M n is from about 10,000 to about 1,000,000 Da. s is a number from 0 to 1, inclusive; t is a number from 0 to 1, inclusive; s+t=1; X has the chemical structure: Y has the chemical structure: wherein: R 5 is selected from the group consisting of: —CH(COR 6 )CH 2 S—, —CH(COR 6 )CH 2 O—, —CH(COR 6 )(CH 2 ) 4 NH—, —(CH 2 ) 4 CH(COR 6 )NH—, —CH(COR 6 )CH(CH 3 )O—, wherein: R 6 is selected from the group consisting of —OH, —O(1C-20C)alkyl, —O(1C-20C)alkenyl and —O(CH 2 CH 2 O) q CH 2 CH 2 OR 7 , wherein: q is an integer from 1 to 600, inclusive; R 7 is selected from the group consisting of hydrogen, —C(O)CH═CH 2 and —C(O)C(CH 3 )═CH 2 ; R 1 and R 4 are independently selected from the group consisting of (1C-12C)alkyl and (2C-12C)alkenyl; R 2 , R 2′ , R 2″ and R 2′″ are independently selected from the group consisting of hydrogen and (1C-4C)alkyl, wherein: the alkyl group is optionally substituted with a moiety selected from the group consisting of —OH, —SH, —SeH, —C(O)OH, —NHC(NH)NH 2 , phenyl and or one or more of R 2 , R 2′ , R 2″ and R 2′″ may form a bridge between the carbon to which it is attached and the adjacent nitrogen, the bridge comprising —CH 2 CH 2 CH 2 —; R 3 and R 3′ are independently selected from the group consisting of (1C-12C)alkyl, (2C-12C)alkenyl, (3C-8C)cycloalkyl and —(CH 2 CH 2 O) q CH 2 CH 2 —, wherein q is an integer from 1 to 10, inclusive, wherein the poly(ester-amide) is from about 0.05 mol % to about 5 mol % cross-linked.