Patent ID: 8629233

Claim:
A polymer comprising one or more monomer units represented by either of the formulas: wherein from zero to five R substituents are present at any position on the phenyl ring, and each R is independently linear or branched, substituted or unsubstituted, saturated or unsaturated alkyl, aryl, alkylaryl, heteroatom-containing alkyl or aryl, alkylcycloalkyl, alkoxy, aryloxy or alkylether having from 1 to 20 carbon atoms; halide; nitro; —(R 2 ) r O((CR 3 R 4 ) a O) s —R s ; —O((CR 3 R 4 ) a O) s —R 5 ; —C(O)—R 5 ; —(R 2 ) b O(O)—YR 6 ; a protected hydroxyl group; a protected amino group or a protected carboxylic acid group; Y is —O— or —NH—; each R 2 is linear or branched, lower alkylene or lower alkenylene; each R 3 and R 4 is independently hydrogen, or linear or branched lower alkyl; each R 5 is independently linear or branched, substituted or unsubstituted, saturated or unsaturated alkyl; each R 6 is hydrogen; saturated or unsaturated alkyl, aryl or alkylaryl having from 1 to 20 carbon atoms; or —(R 2 ) r O((CR 3 R 4 ) a O) s —R 5 ; R 7 and R 8 are independently a bond, or linear or branched, substituted or unsubstituted alkyl, alkenyl or alkynyl having from 1 to 20 carbon atoms, each a is independently 1 to 4; each b is independently zero or one; each r is independently 1 to 4; each s is independently 1 to 5000.