Patent ID: 7935771

Claim:
A polymer having a unit represented by Chemical Formula (1): wherein R represents -A 1 -SO 2 R 1 ; R 1w , and R 1x are each independently a halogen atom or a hydrogen atom; R 1y is a CH 3 group, a halogen atom or a hydrogen atom; A 01 is a substituted or unsubstituted aromatic ring structure or a substituted or unsubstituted heterocyclic structure; A 1 is a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted benezene ring structure, a substituted or unsubstituted naphthalene ring structure, or a substituted or unsubstituted heterocyclic structure; R 1 is OH, a halogen atom, ONa, OK or OR 1a ; R 1a is a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure or a substituted or unsubstituted heterocyclic structure.