Release Time:2019-03-10  Hits:

Indexed by: Journal Article

Date of Publication: 2000-10-03

Journal: JOURNAL OF APPLIED POLYMER SCIENCE

Included Journals: EI、SCIE、Scopus

Volume: 78

Issue: 1

Page Number: 20-24

ISSN: 0021-8995

Key Words: polycondensation; copoly(aryl ether ketone); chain structure; property; solubility

Abstract: New copoly(aryl ether ketone)s have been synthesized by polycondensation of 2,2',3,3',6,6'-hexaphenyl-4,4'-diphenol, 2,2'-p-hydroxyphenyl-iso-propane, and 4,4'-difluorobenzophenone. The technology of C-13-NMR was used to determine contents of the two bisphenols in the copolymers. Chain structure was characterized by illustrating average block length (L-A, L-C) in terms of portion of the triads (AKA, CKC, AKC). The obtained copoly(aryl ether ketone)s have the properties of excellent solubility, high heat-resistance, good tensile strength, and good selectivity for gas permeability. (C) 2000 John Wiley & Sons, Inc.