Citation:
GAO Xuesong, LU Fengcai. SYNTHESIS AND CHARACTERISTICS OF POLY (ARYLENE ETHER DIKETONE)S[J]. Chinese Journal of Polymer Science,
1998, 16(4): 316-326.
SYNTHESIS AND CHARACTERISTICS OF POLY (ARYLENE ETHER DIKETONE)S
摘要:
Poly(arylene ether diketone)s were prepared by the aromatic nucleophilicdisplacement reaction of 4,4'-difluorobenzil with different bisphenols in the presence of an-hydrous potassium carbonate in diphenylsulfone at elevated temperature. The polymersobtained had inherent viscosity of 0.51 ～ 0.63 dL/g, and exhibited glass transition temper-ature ranging from 136 ～217℃ mainly depending on the bisphenols used in the polymersynthesis. Thermogravimetry of these polymers showed excellent thermal stability, indi-cating that 10% weight losses of the polymers were observed in the range above 428℃ and 438℃ in air and nitrogen,respectively.The mechanical properties of these polymers were also described and the permeability of five polymers for H2,O2and N2 was determined at 30℃.
English
SYNTHESIS AND CHARACTERISTICS OF POLY (ARYLENE ETHER DIKETONE)S
Abstract:
Poly(arylene ether diketone)s were prepared by the aromatic nucleophilicdisplacement reaction of 4,4'-difluorobenzil with different bisphenols in the presence of an-hydrous potassium carbonate in diphenylsulfone at elevated temperature. The polymersobtained had inherent viscosity of 0.51 ～ 0.63 dL/g, and exhibited glass transition temper-ature ranging from 136 ～217℃ mainly depending on the bisphenols used in the polymersynthesis. Thermogravimetry of these polymers showed excellent thermal stability, indi-cating that 10% weight losses of the polymers were observed in the range above 428℃ and 438℃ in air and nitrogen,respectively.The mechanical properties of these polymers were also described and the permeability of five polymers for H2,O2and N2 was determined at 30℃.
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