| 聚酰亚胺渗透汽化膜的结构对其吸附特性的影响 |
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| 引用本文： | 裴江峰,徐叶新,孙本惠,陈翠仙,李继定.聚酰亚胺渗透汽化膜的结构对其吸附特性的影响[J].膜科学与技术,2009,29(2). |
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| 作者姓名： | 裴江峰 徐叶新 孙本惠 陈翠仙 李继定 |
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| 作者单位： | 1. 北京化工大学材料科学与工程学院,北京,100029
2. 清华大学化学工程系,北京,100084 |
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| 基金项目： | 国家重点基础研究发展规划(973计划)，国家自然科学基金，中石化科技开发研究基金，中石油风险创新基金 |
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| 摘 要： | 以3种二酐和3种二胺为单体,合成了9种不同结构的聚酰亚胺(PI)均质膜;在303.15 K下分别测量了水蒸气小分子在PI膜中的动态吸收曲线;并通过计算反常扩散指数(dW),讨论了聚酰亚胺膜材料的吸附性能与结构的关系.
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| 关 键 词： | 渗透汽化 聚酰亚胺 吸附特性 反常扩散指数 |
Effect of polyimide pervaporation membrane structure on its adsorption property |
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| PEI Jiangfeng,XU Yexin,SUN Benhui,CHEN Cuixian,LI Jiding.Effect of polyimide pervaporation membrane structure on its adsorption property[J].Membrane Science and Technology,2009,29(2). |
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| Authors: | PEI Jiangfeng XU Yexin SUN Benhui CHEN Cuixian LI Jiding |
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| Affiliation: | 1.School of Materials Science and Engineering;Beijing University of Chemical Technology;Beijing 100029;China;2.Department of Chemical Engineering;Tsinghua University;Beijing 100084;China |
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| Abstract: | Nine kinds of polyimide (PI) membranes with different structures were prepared by condensation polymerization of different kinds of dianhydrides and diamines. The dynamic adsorption curves of steam permeated in different PI membranes at the temperature of 303.15 K were measured. The relationships between the adsorption property and the PI membrane structure were discussed by using the calculated anomalous diffusion index. |
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| Keywords: | pervaporation polyimide adsorption property anomalous diffusion index |
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