Polymeric membrane for gas separation
    28.
    发明授权
    Polymeric membrane for gas separation 失效
    用于气体分离的聚合物膜

    公开(公告)号:US4859215A

    公开(公告)日:1989-08-22

    申请号:US144295

    申请日:1988-05-02

    IPC分类号: B01D67/00 B01D71/44

    摘要: The present invention is a modified polymeric membrane having improved selectivity for separating gas mixtures. The membrane comprises a silyl substituted polyacetylene polymer to which has been added 5 to 50 wt. % of an additive which is miscible with the polymer, has a boiling point >300.degree. C. at atmospheric pressure, is soluble in a common solvent for the polymer and increases the selectivity ratio of O.sub.2 /N.sub.2 by at least 15% over the polymer without the additive.

    摘要翻译: 本发明是具有改进的分离气体混合物选择性的改性聚合物膜。 该膜包括甲硅烷基取代的聚乙炔聚合物,向其中加入5至50wt。 与聚合物可混溶的添加剂的%,在大气压下沸点> 300℃,可溶于聚合物的常用溶剂中,并且使O 2 / N 2的选择比比聚合物提高至少15% 没有添加剂。