Synthesis of poly(arylene ether ketones) in high-boiling amide solvents

被引:0
|
作者
Sharapov, D.S. [1 ]
Shaposhnikova, V.V. [1 ]
Salazkin, S.N. [1 ]
机构
[1] Inst. of Organoelement Compounds, RAS, ul. Vavilova 28, Moscow, 119991, Russia
来源
Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya | 2004年 / 46卷 / 04期
关键词
Aromatic polymers - Molecular weight - Organic solvents - Viscosity measurement;
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摘要
The effect of high-boiling solvents (N-acetylpiperidine, N-benzoylpiperidine, and N,N-dimethylbenzamide), temperature (185-260°C), and polycondensation time (2-30 h) on the reduced viscosity of the forming poly(arylene ether ketones) is studied for the interaction of 4,4-difluoro- and 4,4'-dichlorobenzophenones with bisphenol A, phenolphthalein, and phenolfluorene. It is shown that polymers of the highest molecular mass (reduced viscosity up to 1.08 dl/g) are synthesized in N,N-dimethylbenzamide at 240°C and those of the lowest molecular mass (reduced viscosity 0.26 dl/g) are synthesized in N-acetylpiperidine at 185°C.
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页码:639 / 643
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