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首页> 外文期刊>Journal of Applied Polymer Science >Pervaporation membranes based on imide-containing poly(amic acid) and poly(phenylene oxide)
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Pervaporation membranes based on imide-containing poly(amic acid) and poly(phenylene oxide)

机译：基于含酰亚胺的聚酰胺酸和聚苯醚的全蒸发膜

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摘要

Three imide-containing poly(amic acids) were synthesized and used for homogeneous and composite membrane preparation. The transport properties of composite membranes consisting of an imide-containing poly(amic acid) top layer on an asymmetric porous poly(phenylene oxide) support were studied in the pervaporation of aqueous solutions of organic liquids (ethanol, isopropanol, acetone, and ethylacetate) and organic/organic mixtures (ethylacetate/ethanol, methanol/cyclohexane). For most of the aqueous/organic mixtures, the composite membranes exhibited dehydration properties. Dilute aqueous solutions of ethylacetate were an exception. In these solutions, the composite membranes exhibited organophilic properties, high permeability, and selectivity with respect to ethylacetate. In the pervaporation of methanol/cyclohexane mixtures, methanol was removed with very high selectivity. To account for specific features of pervaporation on the composite membranes, the sorption and transport properties of homogeneous membranes prepared from polymers comprising the composite membrane [imide-containing poly(amic acids) and poly(phenylene oxide)] were studied. (C) 2003 Wiley Periodicals, Inc. J Appl Polym Sci 89: 2361-2368, 2003. [References: 27]
机译：合成了三种含酰亚胺的聚酰胺酸，并将其用于均相膜和复合膜的制备。研究了在有机液体（乙醇，异丙醇，丙酮和乙酸乙酯）的全蒸发中，由不对称多孔聚苯醚上的含酰亚胺的聚酰胺酸顶层构成的复合膜的传输性能。以及有机/有机混合物（乙酸乙酯/乙醇，甲醇/环己烷）。对于大多数水/有机混合物，复合膜表现出脱水性能。乙酸乙酯的稀水溶液是一个例外。在这些溶液中，复合膜表现出亲有机性，高渗透性和相对于乙酸乙酯的选择性。在甲醇/环己烷混合物的全蒸发中，以非常高的选择性除去甲醇。为了考虑复合膜上的全蒸发的特定特征，研究了由包含复合膜的聚合物[含酰亚胺的聚（酰胺酸）和聚（苯醚）]制备的均质膜的吸附和传输性能。 （C）2003 Wiley Periodicals，Inc. J Appl Polym Sci 89：2361-2368，2003。[参考：27]

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