Gemini-type Cationic Molecules-Styrene Block Polymer Anion Conducting Membrane Prepared by in-situ Polymerization

doi:10.11944/j.issn.1000-0518.2016.06.150309

Chinese Journal of Applied Chemistry ›› 2016, Vol. 33 ›› Issue (6): 693-700.DOI: 10.11944/j.issn.1000-0518.2016.06.150309

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Gemini-type Cationic Molecules-Styrene Block Polymer Anion Conducting Membrane Prepared by in-situ Polymerization

ZHANG Fan,WANG Lulu,WANG Jilin(),FENG Ruijiang,ZHANG Yang

School of Petroleum and Chemical Technology,College of Chemistry,Chemical Engineering and Environmental Engineering,Liaoning Shihua University,Fushun 113001,China

Received:2015-08-25 Accepted:2015-11-02 Published:2016-06-01 Online:2016-06-01
Contact: WANG Jilin
Supported by:
Supported by the Scientific Research Fund of Liaoning Provincial Education Department(No.L2013153), Fundamental Research Funds for the Doctoral of Liaoning Provincial Natural Science Foundation(No.20141126), Science and Technology Development Project of Fushun City(No.20141115), Fundamental Research Funds for the Doctoral of Liaoning Shihua University of China(No.2013XJJ-006)

Abstract

Abstract:

Block copolymers with different block raties(n(St):n(G_8-2-8)) were prepared through in-situ polymerization in the acetic acid casting solution of quaternized chitosan(QCS), using styrene(St) and Gemini-type cationic molecules maleic acid diethyl brace base pairs [essien alkyl dimethyl chloride/ammonium bromide](G_8-2-8) as raw materials and potassium persulfate(KPS) as the initiator. A series of semi-interpenetrating network structure(Semi-IPN) of anion conducting membranes was prepared using glutaraldehyde(GA) as the crosslinking agent. The above linear block polymer was locked in the QCS network structure. The experimental results show that the anion conducting membrane has high mechanical properties and high anionic conductivity. The anion conducting membrane(n(St):n(G_8-2-8)=5:1, m(G_8-2-8):m(QCS)=20:100) shows the highest ion exchange capacity(1.35 mmol/g ), elongation at break(26.47%) and conductivity(70 ℃, 6.97×10^-2 S/cm). TGA results show that the membrane has good thermal stability and the initiate decomposition temperature is higher than 210 ℃.

Key words: quaternized chitosan, gemini surfactant, styrene, block copolymers, anion conducting membrane

ZHANG Fan, WANG Lulu, WANG Jilin, FENG Ruijiang, ZHANG Yang. Gemini-type Cationic Molecules-Styrene Block Polymer Anion Conducting Membrane Prepared by in-situ Polymerization[J]. Chinese Journal of Applied Chemistry, 2016, 33(6): 693-700.

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Gemini-type Cationic Molecules-Styrene Block Polymer Anion Conducting Membrane Prepared by in-situ Polymerization

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