Polymerizable Ionic Liquid Copolymer P(MMA-co-BVIm-Br) and Its Effect on the Surface Wettability of PVDF Blend Membranes

Chun-hui Du; Xu-min Ma; Chun-jin Wu; Mei-qiang Cai; Meng-xin Hu; Ting Wang

doi:10.1007/s10118-015-1634-y

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Polymerizable Ionic Liquid Copolymer P(MMA-co-BVIm-Br) and Its Effect on the Surface Wettability of PVDF Blend Membranes

PAPER | Updated：2021-06-21

- Polymerizable Ionic Liquid Copolymer P(MMA-co-BVIm-Br) and Its Effect on the Surface Wettability of PVDF Blend Membranes
- Polymerizable Ionic Liquid Copolymer P(MMA-co-BVIm-Br) and Its Effect on the Surface Wettability of PVDF Blend Membranes
- Chinese Journal of Polymer Science 2015年33卷第6期页码：857-868
- Affiliations：
  
  a.School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China
  b.Schoolof Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou 310018, China
- Author bio：
  
  **Chun-hui Du (杜春慧), E-mail: chunhuidudu@gmail.com
- Funds：
  
  National Natural Science Foundation of China(51103130;21004051);Qianjiang Talents Project of Technology Office in Zhejiang Province(2013R10070)
- DOI：10.1007/s10118-015-1634-y
  中图分类号：
- 收稿：2014-09-30，
  
  修回：2014-11-26，
  
  录用：2014-11-27，
  
  纸质出版：2015-06
- Accepted：
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Chun-hui Du, Xu-min Ma, Chun-jin Wu, 等. Polymerizable Ionic Liquid Copolymer P(MMA-co-BVIm-Br) and Its Effect on the Surface Wettability of PVDF Blend Membranes[J]. Chinese Journal of Polymer Science, 2015,33(6):857-868.

Chun-hui Du, Xu-min Ma, Chun-jin Wu, et al. Polymerizable Ionic Liquid Copolymer P(MMA-co-BVIm-Br) and Its Effect on the Surface Wettability of PVDF Blend Membranes[J]. Chinese Journal of Polymer Science, 2015, 33(6): 857-868. DOI: 10.1007/s10118-015-1634-y.
Chun-hui Du, Xu-min Ma, Chun-jin Wu, 等. Polymerizable Ionic Liquid Copolymer P(MMA-co-BVIm-Br) and Its Effect on the Surface Wettability of PVDF Blend Membranes[J]. Chinese Journal of Polymer Science, 2015,33(6):857-868. DOI： 10.1007/s10118-015-1634-y.

Chun-hui Du, Xu-min Ma, Chun-jin Wu, et al. Polymerizable Ionic Liquid Copolymer P(MMA-co-BVIm-Br) and Its Effect on the Surface Wettability of PVDF Blend Membranes[J]. Chinese Journal of Polymer Science, 2015, 33(6): 857-868. DOI: 10.1007/s10118-015-1634-y. DOI：

摘要

Abstract

Polymerizable ionic liquid copolymer P(MMA-

-BVIm-Br) was synthesized by radical polymerization technique

and characterized by Fourier transform infrared spectrometry (FTIR)

H Nuclear magnetic resonance (

H-NMR) and gel permeation chromatography (GPC). The resulting copolymer was used to prepare poly(vinylidene fluoride) (PVDF) blend membranes via a phase inversion method. The effects of the copolymer on the polymorphism

surface wettability and zeta potential (

) of the blend membranes were investigated by ATR-FTIR

contact angle instrument and zeta potential analyzer. Scanning electron microscopy (SEM and SEM-EDS) was also applied to investigate the morphology and the surface element changes of the fabricated membranes. The results indicated that P(MMA-

-BVIm-Br) copolymer existed on the surface of the membrane which made the blend membrane have a positive surface during the experimental pH range. The copolymer was also in favor of the formation of

crystal phase in PVDF membranes. The contact angle experiment indicated that P(MMA-

-BVIm-Br) copolymer could switch the wettability of the blend membranes from hydrophilic to hydrophobic by exchanging Br

anion with PF

. Compared with pure PVDF membranes

the water flux and water recovery flux of the blend membranes were enhanced obviously. The results from the flux recovery ratio (FR) and total fouling ratio (

) all suggested that the blend membranes had good anti-fouling properties.

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