| 主权项 |
1. A synthetic polymer comprising monomer units represented by the formula: wherein R is —(CR3R4)a— or —CR3.═CR4—; R1 is hydrogen; saturated or unsaturated alkyl, aryl, alkylaryl or alkyl ether having from 1 to 20 carbon atoms; or —(R5)qO((CR3R4)rO)s—R6; each R2 is independently a divalent, linear or branched, substituted or unsubstituted alkylene, alkenylene, alkynylene, arylene, alkylarylene, divalent alkyl ether or aryl ether moiety having from 1 to 30 carbon atoms; —(R5)qO((CR3R4)rO)s(R5)q—; or —(R5)qCO2((CR3R4)rO)sCO(R5)q—; R3 and R4 are each independently, hydrogen or linear or branched, substituted or unsubstituted alkyl having from 1 to 10 carbon atoms, R5 is independently linear or branched lower alkylene or lower alkenylene; R6 is independently linear or branched, substituted or unsubstituted, saturated or unsaturated lower alkyl; the aromatic ring has from zero to four Z1 substituents, each of which is independently selected from the group consisting of halide, lower alkyl, alkoxy, nitro, alkyl ether, a protected hydroxyl group, a protected amino group and a protected carboxylic acid group; Y is (bc)n, b is c is n is a number of repeat units; a is 0 to 10; each q is independently 1 to 4; each r is independently 1 to 4; and each s is independently 1 to 5000. |
