| 7 | Studies on Pervaporation Separation of Ethanol/Water Mixtures with Membranes of Polypropylene Sulfonate Salts显示文摘Sulfonated polypropylene membranes loaded with different kinds of counter-ions were prepared by heterogeneous chiorosulfonation reaction of polypropylene membrane followed by hydrolysis and ion-exchange reaction. The membranes obtained were used for selective separation of ethanol/water mixtures by pervaporation. The effects of counter-ion species, ion-exchange capacity, solution composition, thickness of membrane and temperature on the separation behavior of the membranes were investigated. Microstructure and morphology of the membranes were examined by X-ray and SEM as well. | Lin Shaokun, Xu Yingbin and Lin Shangan (Institute of Polymer Science, Zhongshan University, Guangzhou, 510275) | 1990 | Chemical Research in Chinese Universities1990，6，4： | 0 |
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