Preparation and properties of PEI crosslinked PECH/nylon composite anion exchange membrane

JIANG Yuliang1 LIU Yuanwei1,2 HAN Bo1 RUAN Huimin1,3 SHEN Jiangnan1,3 GAO Congjie1,3

(1.Ocean Collage, Zhejiang University of Technology, Hangzhou, Zhejiang, China 310014)
(2.Department of Chemical Engineering and Safety, Binzhou University, Binzhou, Shandong, China 256600)
(3.Center of Membrane Science and Water Technology, Zhejiang University of Technology, Hangzhou, Zhejiang, China 310014)

【Abstract】Polyepichlorohydrin (PECH) is a linear polymer with good stability and membrane-forming properties, and the use of PECH as a matrix to prepare anion exchange membrane can avoid the use of carcinogenic substances chloromethyl ether and bis(chloromethyl) ether. However, the prepared membrane with PECH as matrix has the disadvantages of poor mechanical strength and high water absorption, which limit its wide application in electrodialysis technology. Crosslinking reaction of PECH was carried out by using polyethyleneimine (PEI) as crosslinking agent, and a network structure was formed therein to limit the excessive swelling of the polymer membrane in water, thus to enhance the mechanical strength of the membrane. The nylon mesh was introduced to further improve the mechanical properties of the membrane. In the present work, the QCPECH/nylon composite anion exchange membrane was prepared. The effects of water uptake, swelling degree, ion exchange capacity, mechanical strength, membrane resistance and desalination on the composite anion exchange membrane were investigated. The results showed that the desalination efficiency (94.8%) of the prepared P1 membrane was higher than that of the commercial membrane (92.4%). It can be seen that the composite anion exchange membrane made of PECH/nylon crosslinked with PEI has the potential for development in electrodialysis desalination.

【Keywords】 anion exchange membrane; cross-linked; polyepichlorohydrin (PECH); electrodialysis; desalination;


【Funds】 National Natural Science Foundation of China (21676249) National Key Research and Development Program (2017YFC0403701)

Download this article


    [1] WANG Y, ZHANG Z, JIANG C, et al. Electrodialysis process for the recycling and concentrating of tetramethylammonium hydroxide (TMAH) from photoresist developer wastewater [J]. Industrial & Engineering Chemistry Research, 2013, 52 (51): 61–69.

    [2] KARIDURAGANAVAR M Y, NAGARALE R K, KITTUR A A, et al. Ion-exchange membranes: preparative methods for electrodialysis and fuel cell applications [J]. Desalination, 2006, 197 (3): 46–51.

    [3] SADRZADEH M, MOHAMMADI T. Treatment of sea water using electrodialysis: current efficiency evaluation [J]. Desalination, 2009, 249 (1): 85–92.

    [4] YAN H, XU C, LI W, et al. Electrodialysis to concentrate waste ionic liquids: optimization of operating parameters [J]. Industrial & Engineering Chemistry Research, 2016, 55 (7): 13–19.

    [5] WEI R Q, WANG H P, SHEN B, et al. Effect of nitrobenzene on preparation of carboxylated polystyrene by friedel crafts acylation reaction [J]. Journal of Chemical Industry and Engineering (China), 2005, 56 (7): 5–12 (in Chinese).

    [6] WANG G, WENG Y, CHU D, et al. Developing a polysulfone-based alkaline anion exchange membrane for improved ionic conductivity [J]. Journal of Membrane Science, 2009, 332 (6): 8–13.

    [7] WANG G, WENG Y, ZHAO J, et al. Preparation of a functional poly(ether imide)membrane for potential alkaline fuel cell applications: chloromethylation [J]. Journal of Applied Polymer Science, 2009, 112 (2): 7–21.

    [8] LI X, LIU Q, YU Y, et al. Quaternized poly(arylene ether) ionomers containing triphenyl methane groups for alkaline anion exchange membranes [J]. Journal of Materials Chemistry A, 2013, 1 (13): 35–44.

    [9] ZHANG H, ZHOU Z. Alkaline polymer electrolyte membranes from quaternized poly(phthalazinone ether ketone) for direct methanol fuel cell [J]. Journal of Applied Polymer Science, 2008, 110 (3): 62–76.

    [10] YAN C, ZHANG S, YANG D, et al. Preparation and characterization of chloromethylated/quaternized poly(phthalazinone ether sulfone ketone) for positively charged nanofiltration membranes [J]. Journal of Applied Polymer Science, 2008, 107 (3): 16–21.

    [11] ZENG Q H, LIU Q L, BROADWELL I, et al. Anion exchange membranes based on quaternized polystyrene-block-poly(ethyleneran-butylene)-block-polystyrene for direct methanol alkaline fuel cells [J]. Journal of Membrane Science, 2010, 349 (3): 43–51.

    [12] WANG N, WU C, CHENG Y, et al. Organic–inorganic hybrid anion exchange hollow fiber membranes: a novel device for drug delivery [J]. International Journal of Pharmaceutics, 2011, 408 (7): 39–49.

    [13] KUJAWSKI W, POŹNIAK G. Transport properties of ion exchange membranes during pervaporation of water–alcohol mixtures [J]. Separation Science & Technology, 2005, 40 (11): 95–127.

    [14] MERRIFIELD R B. Solid phase synthesis (Nobel Lecture) [J]. Angewandte Chemie International Edition in English, 1985, 24 (10): 799–810.

    [15] PARCHIKOV S, AUCLAIR B, DAMMAK L, et al. A simplified procedure for ion-exchange membrane characterisation [J]. New Journal of Chemistry, 2004, 28 (10): 7–12.

    [16] XU T, YANG W. Fundamental studies of a new series of anion exchange membranes: membrane preparation and characterization [J]. Journal of Membrane Science, 2001, 190 (2): 66–72.

    [17] WU L, XU T, YANG W, et al. Fundamental studies of a new series of anion exchange membranes: membranes prepared through chloroacetylation of poly (2,6-dimethyl-1,4-phenylene oxide) (PPO) followed by quaternary amination [J]. Journal of Membrane Science, 2006, 286 (9): 92–115.

    [18] GUO T Y, ZENG Q H, ZHAO C H, et al. Quaternized polyepichlorohydrin/PTFE composite anion exchange membranes for direct methanol alkaline fuel cells [J]. Journal of Membrane Science, 2011, 371 (5): 75–88.

    [19] HAN B, PAN J, YANG S, et al. Novel composite anion exchange membranes based on quaternized polyepichlorohydrin for electromembrane application [J]. Industrial & Engineering Chemistry Research, 2016, 55 (26): 17–22.

    [20] CHEN X, JIANG Y, YANG S, et al. Internal cross-linked anion exchange membranes with improved dimensional stability for electrodialysis [J]. Journal of Membrane Science, 2017, 33 (10): 36–45.

    [21] KHURANA R, SCHAEFER J L, ARCHER L A, et al. Suppression of lithium dendrite growth using cross-linked polyethylene/poly (ethylene oxide)electrolytes: a new approach for practical lithium-metal polymer batteries [J]. Journal of the American Chemical Society, 2014, 136 (20): 412–422.

    [22] CHEN M, WU Y, JAFVERT C T, et al. Synthesis of cross-linked cationic surfactant nanoparticles for removing anions from water [J]. Environmental Science Nano, 2017, 15 (13): 31–34.

    [23] SCHMITT F, GRANET R, SARRAZIN C, et al. Synthesis of anion exchange membranes from cellulose: crosslinking with diiodobutane [J]. Carbohydrate Polymers, 2011, 86 (1): 26–36.

    [24] LIU Y, PAN Q, WANG Y, et al. In-situ crosslinking of anion exchange membrane bearing unsaturated moieties for electrodialysis [J]. Separation & Purification Technology, 2015, 156: 33–46.

    [25] WANG W X, SHANG Y M, XIE X F, et al. Preparation of chemically crosslinked guanidine functional anion exchange membrane [J]. CIESC Journal, 2012, 63 (11): 9–35 (in Chinese).

    [26] NA R K, LEE S Y, DONG W S, et al. Effect of end-group cross-linking on transport properties of sulfonated poly(phenylene sulfide nitrile)s for proton exchange membranes [J]. Journal of Power Sources, 2016, 307: 43–84.

    [27] AKAT H, SALTAN F. Synthesis, characterization and thermal degradation of cross-linked polystyrene using the alkyne-functionalized esters as a cross-linker agent by click chemistry method [J]. Polímeros, 2015, 25 (4): 7–16.

    [28] HOSSAIN M M, WU L, LI Y, et al. Preparation of porous poly(vinylidene fluoride) membranes with acrylate particles for electrodialysis application [J]. Separation & Purification Technology, 2015, 150: 2–11.

    [29] HU J, WAN D, ZHU W, et al. Fabrication of a high-stability cross-linked quaternized poly(epichlorolydrin)/PTFE composite membrane via a facile route [J]. ACS Applied Materials & Interfaces, 2014, 6 (7): 30–39.

    [30] DAS G, BANG J P. A bionanocomposite based on 1,4-diazabicyclo-[2.2.2]-octane cellulose nanofiber crosslinked-quaternary polysulfone as anion conducting membrane [J]. Journal of Materials Chemistry A, 2016, 4 (40): 18–23.

    [31] PANDEY A K, GOSWAMI A, SEN D, et al. Formation and characterization of highly crosslinked anion-exchange membranes [J]. Journal of Membrane Science, 2003, 217 (1): 30–38.

    [32] WANG W, FU R, LIU Z, et al. Low-resistance anti-fouling ion exchange membranes fouled by organic foulants in electrodialysis [J]. Desalination, 2017, 417 (1): 3–8.

    [33] DIAZ L A, COPPOLA R E, ABUIN G C, et al. Alkali-doped polyvinyl alcohol–polybenzimidazole membranes for alkaline water electrolysis [J]. Journal of Membrane Science, 2017, 535: 36–42.

    [34] ZHOU M, CHEN X, PAN J, et al. A novel UV-crosslinked sulphonated polysulfone cation exchange membrane with improved dimensional stability for electrodialysis [J]. Desalination, 2017, 415: 42–49.

This Article


CN: 11-1946/TQ

Vol 69, No. 06, Pages 2744-2752

June 2018


Article Outline


  • Introduction
  • 1 Experimental
  • 2 Results and discussion
  • 3 Conclusions
  • References