Simple Introduction of Ion-Exchange Group onto Various Shapes of Polymers
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概要
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A novel and simple preparation method for ion-exchange material was proposed as an alternative for preparation of conventional ion-exchange resin based on styrene-divinyl-benzene matrix. A sulfonic acid group was readily introduced by radiation-induced cografting of sodium styrenesulfonate (SSS, CH<SUB>2</SUB>=CHC<SUB>6</SUB>H<SUB>4</SUB>SO<SUB>3</SUB>Na) with acrylic acid (AAc, CH<SUB>2</SUB>=CHCOOH) to various shapes of trunk polymers made of polyethylene (PE), polypropylene (PP) and polytetrafluoroethylene (PTFE) . Immersion of the electron-beam-Irradiated PE membrane into the mixture of SSS and AAc for 12 h at 323 K provided a SO<SUB>3</SUB>H density of 2.5 mol per kg of the H-type product, which is equivalent to that of a commercially available cation-exchange membrane.
- 日本イオン交換学会の論文
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