| FTIR和ESR法研究离聚体溶液中的离子相互作用 |
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| 引用本文： | 冯克,欧阳巍.FTIR和ESR法研究离聚体溶液中的离子相互作用[J].高等学校化学学报,1992,13(8):1149-1150. |
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| 作者姓名： | 冯克 欧阳巍 |
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| 作者单位： | 中山大学高分子研究所 广州510275
(冯克，欧阳巍)，中山大学高分子研究所 广州510275(李卓美) |
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| 摘 要： | 磺化乙丙三元共聚物(SEPDM)离聚体在二甲苯/5％正己醇混合溶剂中具有特异的粘浓关系和粘温关系,估计是由于金属离子被己醇溶剂化而影响离子间相互作用引起的,但尚未有更多的实验数据加以验证.本文用FTIR和ESR方法对SEPDM离聚体溶液作进一步考察,发现金属离子与己醇确实存在溶剂化效应,溶剂化程度与离子的大小、浓度和温度有关,它直接影响离子在溶液中存在的状态(单离子或离子聚集体),这些结果为从分子水平了解离聚体溶液性质提供了理论根据.用波谱方法研究离聚体溶液中的离子相互作用尚鲜见报道.
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| 关 键 词： | 离聚体 EPDM磺酸盐 FTIR ESR |
Studies on the Ionic Interaction in lonomer Solution by FTIR and ESR |
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| FENG Ke,OUYANG Wei,LI Zhuo-Mei.Studies on the Ionic Interaction in lonomer Solution by FTIR and ESR[J].Chemical Research In Chinese Universities,1992,13(8):1149-1150. |
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| Authors: | FENG Ke OUYANG Wei LI Zhuo-Mei |
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| Abstract: | FTIR and ESR have been used to study the influence of the xylene/hexanol ratio on the cation-anion and cation-cation interactions in sulfonated EPDM ionomers.FTIR results show that the interaction between the solvated metallic ions and SO3-is in the order LiNa>K).The ESR spectra of SEPDM-Mn ionomers indicate that both isolated Mn2+ and Mn2+ cluster exist in the solution.The Mn2+ cluster is favored in less hexanol cosolvent and at high temperature,which is believed to be the reason for the viscosity increase of the ionomer solution with increasing temperature. |
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| Keywords: | Ionomer Sulfonated EPDM(SEPDM) FTIR ESR |
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