THE AGGREGATION STRUCTURE OF CARBOXYLATED POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE) IONOMER

HUANG Yu-hui; CONG Guang-min; LIU Yan; SONG Mo

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THE AGGREGATION STRUCTURE OF CARBOXYLATED POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE) IONOMER

Research Article | 更新时间：2021-03-19

- THE AGGREGATION STRUCTURE OF CARBOXYLATED POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE) IONOMER
- Acta Polymerica Sinica Issue 3, Pages: 345-349(1991)
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- Published：20 June 1991，
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HUANG Yu-hui, CONG Guang-min, LIU Yan, SONG Mo. THE AGGREGATION STRUCTURE OF CARBOXYLATED POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE) IONOMER. [J]. Acta Polymerica Sinica (3):345-349(1991)
DOI：

HUANG Yu-hui, CONG Guang-min, LIU Yan, SONG Mo. THE AGGREGATION STRUCTURE OF CARBOXYLATED POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE) IONOMER. [J]. Acta Polymerica Sinica (3):345-349(1991) DOI：

摘要

本文用热学、力学和散射方法研完了聚苯醚羧酸盐的链结构、羧化聚苯醚(C-PPO)在二氧六环溶液中用0.5 NaOH或CsOH的醇水溶液中和成钠型或铯型的C-PPO离聚体

用DSC测定一系列羧酸盐含量的C-PPO离聚体的玻璃化转变温度得到形成离子微区的临界阳离子浓度约为5mol％;动态力学谱中在高于玻璃化转变温度域出现的α松弛峰亦证明了微相结构的存在;SAXS结果表明其离子微区的尺寸约为30(?)

其尺寸大小和离聚体中阳离子浓度无

Abstract

The aggregation structure of carboxylated poly(2

6-dimethyl 1

4-phenylene oxide) (CPPO) ionomer has been studied with DSC

dynamic mechanical thermal analysis (DMTA)

WAXD and SAXS techniques. The results of DSC predict that there exist a critical concentration for CPPO ionomer

and Tg increases dramatically up to cation concentration of 5mol%. A relaxation peak corresponding to the relaxation of ionic microphase structure appears beyond the Tg region by DMTA measurement. SAXS provided a powerful evidence that there exists ionic clu-sters in CPPO ionomer

and the dimension of these ionic microphase domains are about 30A which is independent of the cation concentration.

关键词

离聚体羧化聚苯醚微相分离小角X光散射

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