Patent ID: 8603634

Claim:
A poly(ester amide) (PEA) of formula: Inactivated Terminal Carboxyl Group-PEA-Inactivated Terminal Amino Group; wherein PEA is of formula: wherein: m is an integer; n is 0 or an integer; X, Y, Z 1 and Z 2 are each independently branched or straight chain alkylene, cycloalkylene, alkenylene, alkynylene, arylene, heteroarylene, or heterocycloalkylene; Inactivated Terminal Carboxyl Group is: —C(O)OR, wherein R is 2 to 12 carbon alkyl; —C(O)NR 1 R 2 , wherein R 1 and R 2 are H, 2 to 12 carbon alkyl, alkyl ether, or alkyl hydroxyl; or —C(O)SR, wherein R is 2 to 12 carbon alkyl; and Inactivated Terminal Amino Group is: —NR 3 ′X − , wherein X is Br, Cl, or I, and each R is a primary or secondary alkyl radical having 2 to 12 carbon atoms; —NHC(O)R, wherein R is a primary or secondary alkyl radical having 2 to 12 carbon atoms; —NHR, wherein R is a primary or secondary alkyl radical having 2 to 12 carbon atoms; —N(CR 2 ) 2 , wherein each R is hydrogen or a primary or secondary alkyl radical having 2 to 12 carbon atoms; —CH═CH 2 ; —NO 2 ; —NHC(O)R, wherein R is cycloalkyl, aryl, or a saturated or unsaturated, linear or branched alkyl; —NHCH 2 CH(OH)R, wherein R is cycloalkyl, aryl, or a saturated or unsaturated, linear or branched alkyl; —NHC(O)NHR, wherein R is cycloalkyl, aryl, or a saturated or unsaturated, linear or branched alkyl; —NHC(S)NHR, wherein R is cycloalkyl, aryl, or a saturated or unsaturated, linear or branched alkyl; or —NHCH 2 CH 2 C(O)R, wherein R is hydrogen, a primary or secondary alkyl radical having 2 to 12 carbon atoms, or OR′, wherein R′ is a primary or secondary alkyl radical having 2 to 12 carbon atoms.