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Effect of DMAc-GCTA mixed solvent on PVDF/P (AA - co - MMA) hollow fiber membrane

Authors： Xingyu Chen，Li Yan，Zhen-Liang Xu，Yong-Min Wei，Hu Yang*

Units： State Key Laboratory of Chemical Engineering，Shanghai Key Laboratory of Multiphase Structural Materials，Membrane Science and Engineering R&D Lab，Chemical Engineering Research Center，East China University of Science and Technology，Shanghai 200237

KeyWords： GCTA，PVDF hollow fiber membrane，copolymer

ClassificationCode：TQ028.8

year,volume(issue):pagination： 2016,36(5):36-39

Abstract：

Random P(AA-co-MMA) synthesized by free radical solution polymerization of acrylic acid (AA) and methyl methacrylate (MMA) was used as pore forming agent，and the mixture of dimethyl acetamide (DMAc) and glyceryl triacetate as used as solvents，then P(AA-co-MMA)/PVDF hollow fiber membrane was prepared by NIPS method. P(AA-co-MMA) copolymer has been tested and analyzed by FTIR and GPC. The influence of the ratio of glyceryl triacetate on the performance and structure of P(AA-co-MMA)/PVDF hollow fiber membrane were investigated by viscosity test，flux and rejection，scanning electron microscopy(SEM).The results show that the conversion rate of P(AA-co-MMA) copolymer is 94%，and the Mv=146646；the maximum amount of the glyceryl triacetate in mixed solvent is 20%，otherwise，the casting solution is unstable and easy to gel at room temperature；with the increase of glyceryl triacetate，the viscosity increases，the pure water flux increases first and then decreases，but the PEG rejection rate increases，membrane section double finger holes gradually reduce and shorter.

Funds：

国家自然科学基金项目(20076009、21176067、21276075和21406060)

AuthorIntro：

第一作者简介：陈星妤（1992-），女，浙江温州人，硕士研究生，主要从事膜技术方面的研究工作。通讯联系人：Email: hyang@ecust.edu.cn

Reference：

[1] M M Tao，F Liu，B R Ma，et al.Effect of solvent power on PVDF membrane polymorphism during phase inversion[J].Desalination，2013，316，137-145.
[2] Liu F，Hashim N A，Liu Y，et al. Progress in the production and modification of PVDF membranes[J]. Membrane Science，2011，375，1-27.
[3] Liu T，Zhang R ，Li Q，et al.Fabrication of a novel dual-layer (PES/PVDF) hollow fiber ultrafiltration membrane for wastewater treatment[J]. Membrane Science，2014，472，119-132.
[4] 杨虎，许振良，平郑骅，等.聚偏氟乙烯膜表面丙烯酸接枝改性研究[J].膜科学与技术，2006，26(4)：24-26.
[5] Ping-Yun Zhang，Zhen-Liang Xu，Xiao-Hua Ma，et al.Fabrication and characterization of PVDF hollow fiber membranes employing in-situ self-assembly modulation concept[J]. Membrane Science，2015，486：119-131.
[6] Ping-Yun Zhang，Zhen-Liang Xu，Xiao-Hua Ma，et al.Preparation and characterization PVDF membranes from water and ethanol coagulants via in situ free radical polymerization [J].Polymer Advance Technology，2014，25(9)：1044-1053.
[7] Guillen，G. R. Pan，Y. Li，et al．Preparation and characterization of membranes formed by nonsolvent induced phase separation: a review[J]. Industry Engineer Chemical Research，2011，50，3798-3817.
[8] Zhao L B，Xu Z L，Liu M，et al．Preparation and characterization of PSf hollow fiber membrane from PSf-HBPE-PEG400-NMP dope solution[J]．Membrane Science，2014，454：184-192.
[9] R.X. Zhang， T.Y. Liu， L. Braeken，et al. A Design of Composite Hollow Fiber Membranes with Tunable Performance and Reinforced Mechanical Strength[J].Apply Polymer Science，2015，132，41247.
[10] M. Safarpour，A. Khataee，V. Vatanpour.Preparation of a Novel Polyvinylidene Fluoride (PVDF) Ultrafiltration Membrane Modified with Reduced Graphene Oxide/Titanium Dioxide (TiO2) Nanocomposite with Enhanced Hydrophilicity and Antifouling Properties[J].Industry Engineer Chemical Research，2014，53，13370–13382.

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