Abstract
It is possible to synthesize poly butylene succinate (PBS) to a number average molecular weight of something like 10000-12000 (GPC measured with chloroform used as solvent) by the deglycol reaction. The fungus strains used in this study were isolated from soil. The synthesized PBSs were decomposed by the fungus of six groups for two weeks. The study was clear biodegradation of PBSs with microorganisms.