Fabrication of Hydrophilic and Sponge-like PVDF/Brush-like Copolymer Blend Membranes Using Triethylphosphate as Solvent

Jian-hua Wang; Yong-hua Zhang; You-yi Xu; Bao-ku Zhu; Hong Xu

doi:10.1007/s10118-014-1371-7

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Fabrication of Hydrophilic and Sponge-like PVDF/Brush-like Copolymer Blend Membranes Using Triethylphosphate as Solvent

Updated：2021-06-21

- Fabrication of Hydrophilic and Sponge-like PVDF/Brush-like Copolymer Blend Membranes Using Triethylphosphate as Solvent
- Chinese Journal of Polymer Science Vol. 32, Issue 2, Pages: 143-150(2014)
- Affiliations：
  
  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
- Author bio：
  
  **Bao-ku Zhu (朱宝库), E-mail: zhubk@zju.edu.cn
- Funds：
- DOI：10.1007/s10118-014-1371-7
  CLC：
- Received：27 February 2013，
  
  Revised：2013-05-09，
  
  Accepted：09 June 2013，
  
  Published：2014-02
- Accepted：
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Jian-hua Wang, Yong-hua Zhang, You-yi Xu, et al. 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：

Jian-hua Wang, Yong-hua Zhang, You-yi Xu, et al. 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.

摘要

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-

-PEGMA)

as hydrophilic additive and triethylphosphate (TEP) as solvent. P(MMA-

-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-

-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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