PES-C,(PP/Bis-T)PES的次级松驰与转变  

SECONDARY RELAXATION AND TRANSITION OF POLY(ARYLENE ETHER SULFONE) WITH CARDO GROUP AND ITS COPOLYMERS

作　　者：范广宇[1] 刘克静[2] 

机构地区：[1]烟台师范学院化学系 [2]中科院长春应化所

出　　处：《烟台师范学院学报（自然科学版）》1992年第1期56-59,共4页Yantai Teachers University journal(Natural Science Edition)

摘　　要：描述了酚酞型聚芳醚砜(PES-C)的次级松驰和转变与其结构的关系.TBA和动态力学实验结果表明:PES-C及其共聚物(PP/Bis-T)PES分别在0～50℃和-100℃附近呈现出两个次级松驰峰;双酚T单元的引入导致了PES-C在0～50℃之间的次级松驰位置改变.证实了Cardo侧基的存在对-100℃的次级松驰有较大的贡献.The relations between the secondary relaxation and transition of poly (arylene ether sulfone) with Cardo and (PP/Bis-T) PES copolymers and their structure are described. Torsion braid analysis and dynamic mechanical measurement show that PES-C and its copolymers appear the secondary relaxation at 0~50℃(3. 5Hz) and - 100℃ (3. 5Hz) , separately. The molecular chain of PES-C with 4, 4'-thiodiphenol component results in the change of the secondary relaxation at 0-50℃. At the same time, the secondary relaxation at 100℃ is attributed to the movement of Cardo side group in polymer chain.

关 键 词：酚酞型 聚芳醚砜 次组松驰 转变 

分 类 号：O632.32[理学—高分子化学]