| Fabrication of Hydrophilic and Sponge-like PVDF/Brush-like Copolymer Blend Membranes Using Triethylphosphate as Solvent简 |
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| 引用本文： | 朱宝库. Fabrication of Hydrophilic and Sponge-like PVDF/Brush-like Copolymer Blend Membranes Using Triethylphosphate as Solvent简[J]. 高分子科学, 2014, 32(2): 143-150. DOI: 10.1007/s10118-014-1371-7 |
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| 作者姓名： | 朱宝库 |
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| 基金项目： | This work was financially supported by the National Natural Science Foundation of China （No. 20974094）, National 973 Program （No. 2009CB623402）, Key Innovation Team for Science and Technology of Zhejiang Province, China （No. 2009R50047） and Postdoctoral Science Foundation funded project of Zheiiang Province, China （No. Bsh1202045）. |
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| 摘 要： | Porous PVDF blend membranes with good hydrophilicity and a symmetric structure were prepared by the phase inversion method using amphiphilic brush-like copolymers, P（MMA-r-PEGMA）, as hydrophilic additive and triethylphosphate （TEP） as solvent. P（MMA-r-PEGMA） was synthesized by radical polymerization in TEP. Then the obtained amphiphilic copolymer solution was mixed with PVDF and TEP to prepare the dope solution. The effects of P（MMA-r-PEGMA） content and coagulation composition on membrane morphologies were investigated using scanning electron microscopy （SEM）. The results demonstrated that, even blended with amphiphilic copolymers, a symmetric structure can be formed. Hollow fiber membranes with a mainly symmetric structure were also fabricated. The dry hollow fiber membranes showed good hydrophilicity, high flux and good rejection performance because of their hydrophilic surface and pores wall.
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| 关 键 词： | 亲水性添加剂 两亲共聚物 聚偏氟乙烯 磷酸三乙酯 共混膜 制造 溶剂 海绵状 |
Fabrication of hydrophilic and sponge-like PVDF/brush-like copolymer blend membranes using triethylphosphate as solvent |
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| Jian-hua Wang,Yong-hua Zhang,You-yi Xu,Bao-ku Zhu,Hong Xu. Fabrication of hydrophilic and sponge-like PVDF/brush-like copolymer blend membranes using triethylphosphate as solvent[J]. Chinese Journal of Polymer Science, 2014, 32(2): 143-150. DOI: 10.1007/s10118-014-1371-7 |
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| Authors: | Jian-hua Wang Yong-hua Zhang You-yi Xu Bao-ku Zhu Hong Xu |
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| Affiliation: | 1. MOE Key Laboratory of Macromolecular Synthesis and Functionalization MOE Engineering Research Center of Membrane and Water Treatment Technology Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, 310027, China
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| Abstract: | Porous PVDF blend membranes with good hydrophilicity and a symmetric structure were prepared by the phase inversion method using amphiphilic brush-like copolymers, P(MMA-r-PEGMA), as hydrophilic additive and triethylphosphate (TEP) as solvent. P(MMA-r-PEGMA) was synthesized by radical polymerization in TEP. Then the obtained amphiphilic copolymer solution was mixed with PVDF and TEP to prepare the dope solution. The effects of P(MMA-r-PEGMA) content and coagulation composition on membrane morphologies were investigated using scanning electron microscopy (SEM). The results demonstrated that, even blended with amphiphilic copolymers, a symmetric structure can be formed. Hollow fiber membranes with a mainly symmetric structure were also fabricated. The dry hollow fiber membranes showed good hydrophilicity, high flux and good rejection performance because of their hydrophilic surface and pores wall. |
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| Keywords: | Poly（vinylidene fluoride） Membrane Triethylphosphate Hydrophilicity Amphiphilic copolymer. |
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