Synthesis and Characterization of Poly (butylenes succinate) with Control Different End-group

摘要

Poly (butylenes succinate) (PBS) was synthesized by usingl,4-butanediol and succinate as starting material,titanic acid ester and acetate as catalyst,and tried to improve PBS by changing end-group to carboxyl,hydroxyl and chlorine.The results of GPC showed,molecular weight of four kinds of polymer was all beyond seventy thousand; chemical structure of the polymer was measured by FTIR and nitrogen/sulfur/chlorine elementary analyzer; PBS controlled end-group had better thermal properties by DSC and TG; different end-group had influenced mechanical properties; and biodegradability experiment results showed biodegradable speed of PBS can be controlled by changing their end-group.