Patent ID: 7455949

Claim:
A polymer comprising a phenolic monomeric unit of which the phenyl group is substituted by a group A, wherein group A has one of the following formulae: wherein X and Y are independently selected from O and S, wherein each R 1 and R 20 to R 23 is a terminal group independently selected from hydrogen, an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclic, aryl, heteroaryl, aralkyl or heteroaralkyl group, halogen, —SO 2 —NH—R 24 , —NH—SO 2 —R 27 , —CO—NR 24 —R 25 , —NR 24 —CO—R 27 , —NR 24 —CO—NR 25 —R 26 , —NR 24 —CS—NR 25 —R 26 , —NR 24 —CO—O—R 25 , —O—CO—NR 24 —R 25 , —O—CO—R 27 , —CO—O—R 24 , —CO—R 24 , —SO 3 —R 24 , —O—SO 2 —R 27 , —SO 2 —R 24 , —SO—R 27 , —P(═O)(—O—R 24 )(—O—R 25 ), —O—P(═O)(—O—R 24 )(—O—R 25 ), —NR 24 —R 25 , —O—R 24 , —S—R 24 —CN, —NO 2 , —N(—CO—R 24 )(—CO—R 25 ), —N-phthalimidyl, -M-N-phthalimidyl, and -M-R 24 , wherein M represents a divalent linking group containing 1 to 8 carbon atoms, wherein R 24 to R 26 are independently selected from hydrogen and an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclic, aryl, heteroaryl, aralkyl or heteroaralkyl group, wherein R 27 is selected from an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, heterocyclic, aryl, heteroaryl, aralkyl and heteroaralkyl group, wherein a and d are independently 0, 1, 2, 3 or 4, wherein b and c are independently 0, 1, 2 or 3, wherein E 3 is selected from O, S, NR 28 and R 29 -[L 15 ] i -C-[L 16 ] j -R 30 , wherein L, L 15 and L 16 are independently a linking group, wherein n, i and j independently are 0 or 1, and wherein one of the groups selected from R 1 , R 20 , R 21 , R 22 , R 23 , R 28 , R 29 and R 30 represents the phenolic monomeric unit and the remaining groups represent a terminal group.