Patent ID: 7271234

Claim:
A polyarylate comprising repeating units having the structure: wherein R 1 is CH═CH or (CH 2 ) n wherein n is from 0 to 18, inclusive; R 2 is selected from the group consisting of hydrogen and straight and branched alkyl and alkylaryl groups containing up to 18 carbon atoms; and R has the structure: —R 4 —C(═O)—O[(—CH 2 ) a —CHR 3 —O—] m C(═O)—R 4 — wherein a is from 1 to 3, inclusive, m is from 1 to 500,000, inclusive, R 3 is hydrogen or a lower alkyl group containing from one to four carbon atoms, and R 4 is selected from the group consisting of a bond and straight and branched alkyl and alkylaryl groups containing up to 18 carbon atoms.