membranesFundamental study of Cu3(BTC)2 (BTC=benzene-1,3,5-ricarboxylate) as an additive to improve the gas separation performance of polydimethylsiloxane/polyetherimide composite

WANG Qian;LIU LiYing;DING ZhongWei;MA RunYu

Journal of Beijing University of Chemical Technology ›› 2014, Vol. 41 ›› Issue (1) : 19-23.

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Journal of Beijing University of Chemical Technology ›› 2014, Vol. 41 ›› Issue (1) : 19-23.
化学与化学工程

membranesFundamental study of Cu3(BTC)2 (BTC=benzene-1,3,5-ricarboxylate) as an additive to improve the gas separation performance of polydimethylsiloxane/polyetherimide composite

  • WANG Qian;LIU LiYing;DING ZhongWei;MA RunYu
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Abstract

Asymmetric polydimethylsiloxane (PDMS)/polyetherimide (PEI) composite plate membranes filled with Cu3(BTC)2(BTC = benzene-1,3,5-tricarboxylate), a metal-organic framework compound, have been used for gas separation. Permeability, diffusivity, solubility and separation factors of CO2、CH4、O2 and N2 were measured. It was found that adding Cu3(BTC)2could reduce the permeation and diffusion activation energy of the gases, and increase the diffusivity and permeability of the gases. Furthermore, composite membranes modified by Cu3(BTC)2showed higher permeability and separation performance at low temperatures, and gave higher permeabilities under high feed pressures.

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WANG Qian;LIU LiYing;DING ZhongWei;MA RunYu. membranesFundamental study of Cu3(BTC)2 (BTC=benzene-1,3,5-ricarboxylate) as an additive to improve the gas separation performance of polydimethylsiloxane/polyetherimide composite[J]. Journal of Beijing University of Chemical Technology, 2014, 41(1): 19-23

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