Synthesis and Characterization of Novel Thermal Stability Poly (ester-imide-ether) with Excellent Lower Temperature Elastic Recovery

摘要

A new poly(ester-imide-ether) (PEIE) was prepared by melt polymerization from 1,4-butanediol (BD), polytetrahydrofuran diol (PTMG) and a novel imide dicarboxylic acid monomer which was synthesized from 3,3',4,4'-biphenyltetracarboxylic di-anhydride(BPDA) and glycine acid(GLY). The structure, thermal behaviour and elastic recovery of polymer were characterized by FT-IR. thermogravimetric analysis (TGA), differential scanning calorimetry thermograms (DSC) and laboratory stretching machine. The results showed this polymer has excellent thermal stability, 5% weight loss temperature was at 354°C. Meanwhile, the DSC curve showed that glass-transition temperature and crystallization temperature of the polymer were at -30°C and 160°C, respectively. The excellent elastic recovery was still displayed at low temperature.