Patent ID: 7557176

Claim:
A polyhydroxyalkanoate comprising at least a unit represented by a chemical formula (1) within its 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 represents a group having a substituted or unsubstituted aliphatic hydrocarbon structure, a substituted or unsubstituted aromatic ring structure or a substituted or unsubstituted heterocyclic structure; n represents an integer selected from 0 to 4 with the proviso when n is 0, 2, 3, or 4, then m=0−8, and also with the proviso when n=1 then m=0; if more than one unit of the chemical formula (1) is present, each of R, R 1 , R 1a , A 1 , m, and n is independently selected for each unit.