NOVEL VINYL ALCOHOL BASED COPOLYMER, PRODUCTION METHOD FOR SAME, AND ION EXCHANGE MEMBRANE
    2.
    发明申请
    NOVEL VINYL ALCOHOL BASED COPOLYMER, PRODUCTION METHOD FOR SAME, AND ION EXCHANGE MEMBRANE 审中-公开
    新型乙烯基醇共聚物,其生产方法和离子交换膜

    公开(公告)号:US20160168346A1

    公开(公告)日:2016-06-16

    申请号:US15050723

    申请日:2016-02-23

    申请人: Kuraray Co., Ltd.

    摘要: Provided are a modified vinyl alcohol (VA) having a reduced water content to exhibit a practically-required form stability, a producing method for the same, and an ion exchange membrane. (1) A copolymer (P) including, as structural units, a vinyl alcohol monomer unit (A), a vinylene monomer unit (B), and a polymer unit (C) having a polar group other than a hydroxyl group. (2) A method for producing the copolymer (P) including: providing a copolymer (P′) including a vinyl alcohol polymer unit (A′) and a polymer unit (C) having a polar group other than a hydroxyl group, and heat-treating the copolymer (P′) under an acidic condition to form a polyene structure by dehydration so as to introduce a vinylene monomer unit (B). (3) An ion-exchange membrane containing as a main component a copolymer (PA) in which the polymer unit (C) having a polar group other than a hydroxyl group is a polymer unit (CA) having an ionic group.

    摘要翻译: 提供具有降低的水含量的改性乙烯醇(VA),以呈现实际需要的形式稳定性,其制备方法和离子交换膜。 (1)作为结构单元的乙烯醇单体单元(A),亚乙烯基单体单元(B)和具有羟基以外的极性基团的聚合单元(C)的共聚物(P)。 (2)一种共聚物(P)的制造方法,其特征在于,包括:提供包含乙烯醇聚合物单元(A')和除了羟基以外的极性基团的聚合物单元(C)的共聚物(P'), 在酸性条件下,将共聚物(P')进行脱水以通过脱水形成多烯结构,从而引入亚乙烯基单体单元(B)。 (3)以非羟基以外的极性基团的聚合物单元(C)为具有离子性基团的聚合物单元(CA)作为主要成分的共聚物(PA)的离子交换膜。