Effects of plasma treatment on CO2 plasticization of poly(methyl methacrylate) gas-separation membranes

被引：0

作者：

Hu, Chien-Chieh ^{[1
]}

Tu, Chen-Yuan ^{[1
]}

Wang, Yi-Chieh ^{[2
]}

Li, Chi-Lan ^{[2
]}

Lee, Kueir-Rarn ^{[2
]}

Lai, Juin-Yih ^{[1
]}

机构：

[1] R/D Center for Membrane Technology, Department of Chemical Engineering, Chung Yuan University, Chung Li 32023, Taiwan

[2] Department of Chemical Engineering, Nanya Institute of Technology, Chung Li 32034, Taiwan

来源：

Journal of Applied Polymer Science | 2004年 / 93卷 / 01期

关键词：

Carbon dioxide - Crosslinking - Fourier transform infrared spectroscopy - Plasma theory - Polymethyl methacrylates - Separation - Surface treatment - Thermogravimetric analysis;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

To suppress undesirable plasticization effects of condensable gas (CO 2) in high pressure gas-separation process, a surface-modified poly(methyl methacrylate) (PMMA) membrane prepared by a plasma treatment was synthesized in this study. The pressure dependencies of permeability were analyzed to characterize the plasticization phenomenon and how it can be controlled by the plasma modification. PTIR-ATR and TGA results suggest that the plasma treatment leads to surface crosslinking of PMMA membrane. Thus, the plasticization effect resulting from sorbed CO2 on the Ar-plasma-treated PMMA membrane was significantly reduced, but the reduction in permeability was lower than that of other crosslinking modification methods. The reduction of the CO2 permeability contributes to a major part to the selectivity of He/CO2 for the Ar-plasma-treated PMMA membranes. © 2004 Wiley Periodicals, Inc.

引用

页码：395 / 401