结晶态双酚A型聚碳酸酯固相缩聚的研究  

Study on Solid State Polycondensation of Crystalline Bisphenol—A Polycarbonate

作　　者：王金[1] 丁一刚[2] 

机构地区：[1]武汉生物工程学院化学与环境工程系,湖北武汉430415 [2]武汉工程大学湖北省新型反应器与绿色化学工艺重点实验室,湖北武汉430074

出　　处：《塑料工业》2011年第4期27-29,共3页China Plastics Industry

基　　金：湖北省教育厅重点项目资助(项目编号2003B002)

摘　　要：在自制的反应器中将结晶态、无定形两种双酚A型聚碳酸酯(BAPC)预聚体固相缩聚合成了高摩尔质量的双酚A型聚碳酸酯。采用DSC、IR对双酚A型聚碳酸酯(BAPC)的熔融行为和结构进行了表征。结果表明,BAPC在固相缩聚后,玻璃化转变温度升高,热稳定性增强,其中BAPC为结晶态时固相缩聚的温度低于无定形态BAPC的固相缩聚温度,且结晶态BAPC固相缩聚后为无定形态。High molecular weight bisphenol--A polycarbonate （BAPC） was respectively synthesized by solid state polyeondensation with crystalline and amorphous bisphenol--A polycarbonate prepolymer in a solid phase reactor. The bisphenol--A polycarbonate was characterized by DSC and FTIR spectroscopy. The resuits showed that bisphenol--A polycarbonate glass transition temperatures increased after solid state polycon-densation, while its thermal stability enhanced. In addition, the polycondensation temperature of crystalline prepoymer was lower than that of amorphous. The polyeondensation synthesized by crystalline bisphenol--A polycarbonate was amorphous.

关 键 词：双酚A型聚碳酸酯 固相缩聚 结晶态 

分 类 号：TQ323.41[化学工程—合成树脂塑料工业]