- Synthesis and characterization of copolyetherketones derived from hexaphenyl substituted diphenylbisphenol and hydroquinone
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- 论文类型： 期刊论文
- 发表时间： 2000-01-01
- 发表刊物： Acta Polymerica Sinica
- 收录刊物： PKU、Scopus
- 期号： 3
- 页面范围： 274-
- ISSN号： 10003304
- 摘要： New copolyetherketones were synthesized from 4,4 -difluorobenzophenone, 2,2 , 3,3 , 6,6 -hexaphenyl-4, 4 -diphenyl-l, 1 -diol and hydroquinone via polycondensation. The technique of 13C-NMR was employed to determine the content of the two bisphenols in the copolyetherketones. The chain structure was characterized by illustrating the average block length (L A, L D) in terms of the portion of different triads (AKA, DKD, AKD). The synthesized copolyetherketones have the properties of excellent solubility, high heat-resistance, good tensile strength and good selectivity for gas permeability.
