发明名称 |
CATION EXCHANGE MEMBRANE AND METHOD FOR PRODUCING SAME |
摘要 |
Provided is a cation exchange membrane having a stable ion exchange performance during usage, being excellent in basic properties such as membrane resistance and ion transportation as well as strength, and useful for electrodialysis and a method for producing the same. The cation exchange membrane is composed of a polyvinyl alcohol copolymer including an anionic group-containing anionic polymer segment and a vinyl alcohol polymer segment, and having a microphase separation structure having a domain size (X) in a range from 0 nm < X ‰¤ 150 nm. The method is composed of forming a membrane from a polyvinyl alcohol copolymer which is adjusted to contain salts in a proportion that the salt weight (C) relative to the polyvinyl alcohol copolymer weight (P) is [(C)/(P)] of 4.5/95.5 or lower. |
申请公布号 |
EP2907839(A4) |
申请公布日期 |
2016.06.08 |
申请号 |
EP20130844805 |
申请日期 |
2013.09.27 |
申请人 |
KURARAY CO., LTD.;YAMAGUCHI UNIVERSITY |
发明人 |
NAKASHIMA, TAKAHIRO;JIKIHARA, ATSUSHI;WAKUI, TAKASHI;HIGA, MITSURU |
分类号 |
C08J5/22;B01D39/02;B01D61/42;B01D69/02;B01D71/38;B01D71/80;B01D71/82;B01J39/18;C02F1/469;C08F293/00;C08F297/00 |
主分类号 |
C08J5/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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