Patent ID: 7553922

Claim:
A polyhydroxyalkanoate comprising one or more units represented by chemical formula (1) in a molecule: wherein R represents -A 1 -SO 2 R 1 , R 1 represents OH, a halogen atom, ONa, OK, or OR 1a , R 1a and A 1 each independently represent a group having a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure, or a substituted or unsubstituted heterocyclic structure, Z 1a represents a linear alkylene chain having 1 to 4 carbon atoms, the linear alkylene chain has at least one linear or branched alkyl group, or at least one alkyl group containing a residue having any one of a phenyl structure, a thienyl structure, and a cyclohexyl structure at a terminal thereof, Z 1b represents a hydrogen atom, or a linear or branched alkyl group, aryl group, or aralkyl group, which may be substituted by an aryl group, m represents an integer selected from 0 to 8, and if more than one unit of the chemical formula (1) is present, each of R, R 1 , R 1a , A 1 , Z 1a , Z 1b , and m is independently selected for each unit.