MISCIBILITY OF BENZOYLATED POLY (2,6-DIMETHYL- 1,4-PHENYLENE OXIDE) WITH POLYSTYRENE

YANG Xiang-hong; HUANG Yu-hui; ZHAO Shu-liu; CONG Guang-min

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MISCIBILITY OF BENZOYLATED POLY (2,6-DIMETHYL- 1,4-PHENYLENE OXIDE) WITH POLYSTYRENE

Research Article | 更新时间：2021-03-19

- MISCIBILITY OF BENZOYLATED POLY (2,6-DIMETHYL- 1,4-PHENYLENE OXIDE) WITH POLYSTYRENE
- Acta Polymerica Sinica Issue 2, Pages: 215-220(1992)
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- Published：20 April 1992，
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YANG Xiang-hong, HUANG Yu-hui, ZHAO Shu-liu, CONG Guang-min. MISCIBILITY OF BENZOYLATED POLY (2,6-DIMETHYL- 1,4-PHENYLENE OXIDE) WITH POLYSTYRENE. [J]. Acta Polymerica Sinica (2):215-220(1992)
DOI：

YANG Xiang-hong, HUANG Yu-hui, ZHAO Shu-liu, CONG Guang-min. MISCIBILITY OF BENZOYLATED POLY (2,6-DIMETHYL- 1,4-PHENYLENE OXIDE) WITH POLYSTYRENE. [J]. Acta Polymerica Sinica (2):215-220(1992) DOI：

摘要

采用DSC方法研究了聚苯乙烯(PS)和苯甲酰化聚苯醚(APPO)共混体系的相容性.相容共混体系Gordon-Taylor方程K参数随苯甲酰化程度(取代度)增加而变小

其玻璃化转变区随取代度增加而变宽

取代度大于76mol％时

共混物呈现双玻璃化转变.APPO/PS共混体系热诱导相图同时存在LCST和UCST现象

且相行为是可逆的.

Abstract

In the presence of a Friedal-Crafts catalyst

the benzoylated PPO (APPO) was prepared by the reaction of PPO with benzoyl chloride. By changing the ratio among PPO

catalyst and benzoylating agent

we obtained a series of samples (APPO) with different substitution levels. The misoibility of PS with various substituted PPO were studied by DSC. When the degree of benzoylation is more than 49 mol%

the blends of APPO/PS show two T

in DSC curves. The effect of temperatures on he phase behafior of A49 PPO/PS blend were studies by DSC.The blend system was found to exhibit both UCST and LCST behavior. It is also found that the thermally induced phase separatioh is reversible.

关键词

相容性聚苯醚聚苯乙烯苯甲酰化共混DSC

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扬州大学化学化工学院

扬州大学江苏省环境工程与环境材料重点实验室

扬州大学测试中心

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