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	Analysis of swelling behavior of polymeric membranes in solutions using UNIFAC-FV-HB activity coefficient model
	Liu, QL ; Li, B ; Liu QL(刘庆林)
	2004
关键词	MECHANISTIC APPROACH COMPOSITE MEMBRANES POLAR MATERIALS VAPOR SORPTION ORGANIC VAPORS MIXTURES LAYER STATE
英文摘要	Conference Name:4th International Conference on Separation Science and Technology (ICSST-04). Conference Address: Nanning, PEOPLES R CHINA. Time:FEB 18-21, 2004.; The chemical potential of species i in liquid phase equal that in polymer when sorption-desorption equilibrium was reached in the solvent/polymer mixture system. A simple activity coefficient model in conjunction with the free volume theory was used to estimate the swelling behavior of poly vinyl alcohol (PVA) in water/glycol (EG) mixture over a wide range of concentrations. The activity of solvents in the liquid was calculated by the modified UNIQUAC model equations with temperature-dependent binary interaction parameters, while that in the polymer was predicted by the UNIFAC-FV-HB activity coefficient model involving hydrogen bonds effects. The estimations consist with experimental data at three temperatures of 60degreesC, 70degreesC and 80degreesC. It is proved that the model is a suitable alternative to the Flory-Huggins equation for analysis of the swelling behaviors of polymeric membranes in solutions.
语种	英语
出处	http://dx.doi.org/10.1142/9789812702623_0033
出版者	WORLD SCIENTIFIC PUBL CO PTE LTD
内容类型	其他
源URL	[http://dspace.xmu.edu.cn/handle/2288/85388]
专题	化学化工－会议论文
推荐引用方式 GB/T 7714	Liu, QL,Li, B,Liu QL. Analysis of swelling behavior of polymeric membranes in solutions using UNIFAC-FV-HB activity coefficient model. 2004-01-01.

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