EFFECT OF TRANSITION METAL-CONTAINING ORGANIC COMPLEX ADDITIVE ON THE PROPERTIES OF POLYIMIDE GAS SEPARATION MEMBRANES

Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (1): 47-50.

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EFFECT OF TRANSITION METAL-CONTAINING ORGANIC COMPLEX ADDITIVE ON THE PROPERTIES OF POLYIMIDE GAS SEPARATION MEMBRANES

Wu Yonglie, Liu Jingzhi, Zheng Jinghe, Yang Jinrong, Yang Fu, Ding Mengxian

Changchun Institute of Applied Chemistry, Academia Sinica 130022 Changchun

Received:1992-01-10 Revised:1992-05-20 Published:1993-02-10 Online:1993-02-10

Abstract

Abstract: Polyirnide gas separation membranes were preparated using metal-containing organic complex with big substituting group as additive. The effects of tranaition metal salts, organic ligand and metal complex on the permeability of polyimide homogenous membranes and asymmetric membranes for separation of hydrogen and nitrogen were studied. It was showed that MnCl₂, Co(NO₃)₂, Cr(Ac)₃ enhanced the separation coefficient and lowered the permeability of the membrane; organic ligand additive enhanced the permeability and lowered separation coefficient; when metallorganic complex was used, the gas permeability was enbanced without decline of separation coefficient.

Key words: polyimide, gas separation membrane, metallorganic complex, additive

Wu Yonglie, Liu Jingzhi, Zheng Jinghe, Yang Jinrong, Yang Fu, Ding Mengxian. EFFECT OF TRANSITION METAL-CONTAINING ORGANIC COMPLEX ADDITIVE ON THE PROPERTIES OF POLYIMIDE GAS SEPARATION MEMBRANES[J]. Chinese Journal of Applied Chemistry, 1993, 0(1): 47-50.

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EFFECT OF TRANSITION METAL-CONTAINING ORGANIC COMPLEX ADDITIVE ON THE PROPERTIES OF POLYIMIDE GAS SEPARATION MEMBRANES

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