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首页> 外文期刊>Journal of Applied Polymer Science >Comparative studies on the effects of casting solvent on physicochemical and gas transport properties of dense polysulfone membrane used for CO2/CH4 separation
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Comparative studies on the effects of casting solvent on physicochemical and gas transport properties of dense polysulfone membrane used for CO2/CH4 separation

机译：铸造溶剂对用于CO2 / CH4分离的致密聚砜膜理化和气体传输性能影响的比较研究

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摘要

The effects of casting solvents on the physico-chemical and transport properties of polysulfone membranes were investigated. Comparative analysis of the properties of membranes prepared from a new solvent (diethylene glycol dimethyether, DEG) and other commonly used solvents (1-methyl-2-pyrrolidone, N,N-dimethylacetamide, dimethyl sulfoxide and N,N-dimethylformamide) were performed using gas permeation, X-ray diffraction, scanning electron microscopy, thermogravimetric, and Fourier transform infrared spectroscopy analyses. The degree of polymer-solvent interaction was evaluated using the solvent molar volume, and Hansen and Flory-Huggins parameters. Membrane prepared from DEG displayed a relatively higher permeability of 29.08 barrer and CO2/CH4 selectivity of 23.12 compared to membranes prepared from other solvents. This improved performance was attributed to the better interaction between the DEG solvent and polysulfone than other solvents that were considered. DEG has the highest molar volume of 142.280 cm(3)/mol and the lowest Flory-Huggins parameter of 0.129. Thus a thorough evaluation of polymer-solvent interaction is very crucial in preparing membranes with optimum performance. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42205.
机译：研究了浇铸溶剂对聚砜膜理化性质和传输性能的影响。对由新型溶剂（二甘醇二甲醚，DEG）和其他常用溶剂（1-甲基-2-吡咯烷酮，N，N-二甲基乙酰胺，二甲基亚砜和N，N-二甲基甲酰胺）制得的膜的性能进行了比较分析。使用气体渗透，X射线衍射，扫描电子显微镜，热重和傅里叶变换红外光谱分析。使用溶剂摩尔体积以及Hansen和Flory-Huggins参数评估聚合物与溶剂的相互作用程度。与由其他溶剂制得的膜相比，由DEG制得的膜显示出29.08 barrer的相对较高的渗透性和23.12的CO2 / CH4选择性。性能的提高归因于DEG溶剂和聚砜之间的相互作用比所考虑的其他溶剂更好。 DEG的最高摩尔体积为142.280 cm（3）/ mol，最低的Flory-Huggins参数为0.129。因此，全面评估聚合物与溶剂的相互作用对于制备具有最佳性能的膜至关重要。 （c）2015 Wiley Periodicals，Inc. J. Appl。 Polym。科学2015，132，42205。

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