摘要
通过在玻璃化转变温度(T_g)较低的YS-30聚醚酰亚胺主链上引入Cardo基团,合成了一系列含芴基Cardo结构的共聚聚醚酰亚胺,并对其溶解性、玻璃化转变温度、热稳定性和力学性能进行研究。结果表明:Cardo结构的引入可以明显提高聚醚酰亚胺的T_g,溶解性有所改善;当Cardo基团的摩尔含量较低时,共聚聚醚酰亚胺的力学性能没有降低。
A series of copolyetherimides with fluorenyl cardo structure were synthesized by introducing fluorenyl cardo groups into the backbone of YS-30 polyetherimides with low glass transition temperature （Tg）, and their solubility, T,, thermal stability, and mechanical properties were studied. The results show that the Tg of the copolyetherimides increases evidently after introducing fluorenyl cardo groups, and the solubility is improved partly. When the molar content of cardo group is low, the mechanical properties do not decrease.
出处
《绝缘材料》
CAS
北大核心
2016年第11期45-50,共6页
Insulating Materials
关键词
Cardo
芴基
聚醚酰亚胺
共聚
性能
cardo
fluorenyl
polyetherimides
copolymerization
properties
