Patent ID: 6319984
Filing Date: 2001-11-20
Classification: C08G

Abstract:
Polyphosphazenes represented by Formula 1: ##STR8##wherein X is O or NH, NHR is a depsipeptide selected from the group consisting of NHCH.sub.2 COOCH.sub.2 COOC.sub.2 H.sub.5 or NHCH.sub.2 COOCH(CH.sub.3)COOC.sub.2 H.sub.5, NHR' is an amino acid ethylester selected from the group consisting of NHCH(CH.sub.2 CH.sub.2 COOC.sub.2 H.sub.5)COOC.sub.2 H.sub.5, NHCH(C.sub.7 H.sub.7)COOC.sub.2 H.sub.5, NHCH(CH(CH.sub.3).sub.2)COOC.sub.2 H.sub.5, or NHCH(CH.sub.2 CH(CH.sub.3).sub.2)COOC.sub.2 H.sub.5, NHR"" is NHCH.sub.2 COOC.sub.2 H.sub.5 or NHCH(CH.sub.3)COOC.sub.2 H.sub.5, and a, b, c, d, e and f are mole fractions of each copolymer that have values between 0.about.1.0 with a relationship a+b+c+d+e+f=1.0 and n is a degree of polymerization of the polyphosphazene and is between 100.about.1000.