摘要
使用 DSC,TG,FTIR,SEC,VPO表征了商业聚 -(双酚 -A-碳酸酯 ) (BPAPC)的结构 .所有的样品具有相同的 FTIR,几乎有相同的玻璃化转变温度和降解的起始温度 .在 DSC曲线上还是有一点微小的差别 ,主要是由于添加剂引起的 .在 2种不同溶液中 (CHCl3 and THF) ,使用 VPO测定了纯净的样品的数均分子量 .使用 SEC测定了样品在 THF中 ,35℃和在 TCB中 ,1
Poly(bisphenol A carbonate) (BPAPC) commercial samples were characterized by several techniques: DSC, TG, FTIR, SEC, VPO. The samples presented the same FTIR spectrum profile and almost the same values of glass transition temperature and initial temperature of degradation. However, slight differences were observed in DTG curves, which may be due to the presence of additives. The number average molecular weight of the samples, as received and purified, was determined by VPO, in two different solvents (CHCl 3 and THF). Relative molecular weights and poly dispersities were determined by SEC, in THF at 35 ℃, and in TCB at 135 ℃.
出处
《信阳师范学院学报（自然科学版）》
CAS
2002年第3期305-308,共4页
Journal of Xinyang Normal University(Natural Science Edition)
