SYNTHESIS AND CHARACTERISTICS OF POLY (ARYLENE ETHER DIKETONE)S

GAO Xuesong; LU Fengcai

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SYNTHESIS AND CHARACTERISTICS OF POLY (ARYLENE ETHER DIKETONE)S

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- SYNTHESIS AND CHARACTERISTICS OF POLY (ARYLENE ETHER DIKETONE)S
- Vol. 16, Issue 4, Pages: 316-326(1998)
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- Published：20 December 1998
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GAO Xuesong, LU Fengcai. SYNTHESIS AND CHARACTERISTICS OF POLY (ARYLENE ETHER DIKETONE)S[J]. 1998, 16(4): 316-326.
DOI：

GAO Xuesong, LU Fengcai. SYNTHESIS AND CHARACTERISTICS OF POLY (ARYLENE ETHER DIKETONE)S[J]. 1998, 16(4): 316-326. DOI：

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℃.

Abstract

Poly(arylene ether diketone)s were prepared by the aromatic nucleophilicdisplacement reaction of 4

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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