Novel flexible styrenic elastomer cation-exchange material based on phenyl functionalized polystyrene-butadiene copolymer

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• 作者：Wu Bin Ying ; Ji Uk Jang ; Min Woo Lee ; Taek Sung Hwang ; Kyung Jin Lee ; ^{kjlee@cnu.ac.kr} ; Bumjae Lee ; ^{bjlee@cnu.ac.kr}
• 关键词：Living anionic polymerization ; Styrene-butadiene copolymer ; Sulfonation ; Ion-exchange resin
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2017
• 出版时间：25 March 2017
• 年：2017
• 卷：47
• 期：Complete
• 页码：128-140
• 全文大小：2076 K
• 卷排序：47

文摘

The sulfonated phenyl functionalized polystyrene-butadiene random copolymer was synthesized for application as flexible ion-exchange material. The polymer was prepared through phenyl functionalization via thiol-ene reaction and sulfonation of the base polystyrene-butadiene copolymer with different vinyl contents and phenyl contents. Sulfonation on phenyl functionalized polystyrene-butadiene copolymer was carried out in 1,2-dichloroethane at room temperature using the acetyl sulfonate as the sulfonation agent which was prepared from the reaction of acetyl acetate with sulfuric acid. The sulfonation degrees were adjusted from 7.3 mol% to 24.3 mol% determined by elemental analysis (EA) with great ion exchange capacity (0.60–2.26 meq/g), conductivity (0.47–6.1 mS/cm) and lower water uptake (5.1–12.8 wt.%). These excellent characteristics lead to great potential using as the flexible ion-exchange material.