| 聚苯醚羧酸盐的聚集态结构 |
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| 引用本文： | 黄玉惠,丛广民,刘彦,宋默.聚苯醚羧酸盐的聚集态结构[J].高分子学报,1991,0(3):345-349. |
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| 作者姓名： | 黄玉惠 丛广民 刘彦 宋默 |
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| 作者单位： | 中国科学院广州化学研究所，中国科学院广州化学研究所，中国科学院广州化学研究所，中国科学院广州化学研究所 广州 510650，广州 510650，广州 510650，广州 510650 |
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| 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
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| 关 键 词： | 离聚体 羧化聚苯醚 微相分离 小角X光散射 |
| 收稿时间： | 1990-02-10 |
THE AGGREGATION STRUCTURE OF CARBOXYLATED POLY(2,6-DIMETHYL-1,4-PHENYLENE OXIDE) IONOMER |
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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,1991,0(3):345-349. |
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| Authors: | HUANG Yu-hui CONG Guang-min LIU Yan SONG Mo |
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| Institution: | Guangzhou Institute of Chemistry; Academia Sinica; Guangzhou; Post code 510650 |
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| 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 clusters in CPPO ionomer, and the dimension of these ionic microphase domains are about 30 A which is independent of the cation concentration. |
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| Keywords: | Ionomer Carboxylated PPO Microphase separation Small angle X-ray scattering |
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