Patent ID: 8192843

Claim:
A polymer comprising formula (II): wherein m 1 is about 5 to about 2000; s is about 5 to about 2000; each R 6 is independently H or alkyl, provided that when one R 6 of any given subunit s is alkyl, the other R 6 of the same subunit s is H; each R 3 is independently H, OH, halo, carboxy, or alkyl wherein alkyl is optionally at least partially fluorinated; alkyl-terminated (-ethylene glycol-) n wherein n is about 2 to about 24; wherein each alkyl or alkyl-terminated (-ethylene glycol-) n is covalently bonded to the carbon of R 3 through an ester, amide, or amino group; or a moiety of formula Z: wherein each X is independently —C(═O)—O— or —C(═O)—NH—, linking the moiety of formula Z to the carbon attached to R 3 , each q is independently 1 to about 25, and each r is independently 1 to about 18; provided that when one R 3 of any given subunit s is a moiety of formula Z, the other R 3 of the same subunit s is not a moiety of formula Z; provided that at least one R 3 of formula II is a moiety of formula Z; and the dispersement of each individual s subunit and each individual m 1 subunit on either side of z* is random and each individual s subunit and each individual m 1 subunit occurs interchangeably with any other s or m 1 subunit within the brackets of formula II.