| Synthesis and Preparation of Polysulfone Hollow Fiber Chelating Membrane Modified with Thiourea |
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| 作者姓名： | 王兵 黄磊 肖峰 |
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| 作者单位： | [1]Key Laboratory of Hollow Fiber Membrane Material and Membrane Process,Ministry of Education,Tianjin Polytechoic University,Tianjin 300160 [2]School of Materials Science and Chemical Engineering,Tianjin Polytechnic University,Tianjin 300160 |
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| 摘 要： | Several kinds of chloromethyl polysulfones （CMPF） with different chlorinity and reactive groups were synthesized by Friedel.crafts reaction, which could be utilized as reactively matrix membrane materials. The CMPF hollow matrix membranes were prepared with phase inversion by utilization of CMPF/additive/DMAC casting solution and CMPF as membrane materials. It was found that the effects of additive content, bore liquid and dry spinning distance on the structure of CMPF hollow fiber matrix membrane were different. A high qualified palysulfone hollow fiber chelating membrane modified with thiourea as chelating groups was prepared using CMPF as membrane matrix materials, through the reaction between thiourea and CMPF hollow fiber matrix membrane to afford the methyl iso-thiourium polysulfone. The experimental results showed that thermal drawing could increase the mechanical properties of matrix membrane, and the thermal treatment could increase the homogeneity and stability of the structure of polysulfoue hollow fiber chelating membrane modified with thiourea.
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| 关 键 词： | 化学纤维 硫脲 合成材料 构成要素 |
| 收稿时间： | 2005-11-22 |
Synthesis and Preparation of Polysulfone Hollow Fiber Chelating Membrane Modified with Thiourea |
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| WANG Bing,HUANG Lei,XIAO Feng.Synthesis and Preparation of Polysulfone Hollow Fiber Chelating Membrane Modified with Thiourea[J].Journal of Donghua University,2006,23(4):52-58. |
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| Authors: | WANG Bing HUANG Lei XIAO Feng |
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| Abstract: | Several kinds of chloromethyl polysulfones (CMPF) with different chlorinity and reactive groups were synthesized by Friedel-crafts reaction, which could be utilized as reactively matrix membrane materials. The CMPF hollow matrix membranes were prepared with phase inversion by utilization of CMPF/additive/DMAC casting solution and CMPF as membrane materials. It was found that the effects of additive content, bore liquid and dry spinning distance on the structure of CMPF hollow fiber matrix membrane were different. A high qualified polysulfone hollow fiber chelating membrane modified with thiourea as chelating groups was prepared using CMPF as membrane matrix materials, through the reaction between thiourea and CMPF hollow fiber matrix membrane to afford the methyl iso-thiourium polysulfone. The experimental results showed that thermal drawing could increase the mechanical properties of matrix membrane, and the thermal treatment could increase the homogeneity and stability of the structure of polysulfone hollow fiber chelating membrane modified with thiourea. |
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| Keywords: | chloromethyl polysulfone thiourea matrix material hollow fiber chelating membrane |
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