Patent ID: 7135540

Claim:
A polyhydroxyalkanoate copolymer comprising a 3-hydroxy-ω-bromoalkanoic acid unit represented by a chemical formula (1) and a unit represented by a chemical formula (2) within a same molecule: wherein n designates a number within a range shown in the chemical formula and can be different from that of another unit in the same molecule; wherein a pair of R and m is selected from the group consisting of R including a residue having a phenyl structure and m being an integer selected from 1 to 8; R including a residue having a thienyl structure and m being an integer selected from 1 to 8; and R includes a residue having a cyclohexyl structure and m being an integer selected from 0 to 8; and, in case plural units are present, the pair of R and m of one unit can be different from that of another unit in the same molecule.