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    • 8. 发明申请
    • Polymer Membranes Derived from Aromatic Polyimide Membranes
    • 衍生自芳族聚酰亚胺膜的聚合物膜
    • US20100243567A1
    • 2010-09-30
    • US12412653
    • 2009-03-27
    • Chunqing LiuRaisa SerbayevaMan-Wing TangLubo ZhouPeter K. Coughlin
    • Chunqing LiuRaisa SerbayevaMan-Wing TangLubo ZhouPeter K. Coughlin
    • B01D53/22B01D71/64B01D61/00C08L77/06C08F2/48
    • B01D71/64B01D67/0088B01D2323/08B01D2323/30
    • The present invention discloses a new type of high performance polymer membranes derived from aromatic polyimide membranes and methods for making and using these membranes. The polymer membranes described in the present invention were derived from aromatic polyimide membranes by crosslinking followed by thermal treating. The aromatic polyimide membranes were made from aromatic polyimide polymers comprising both pendent hydroxy functional groups ortho to the heterocyclic imide nitrogen and cross-linkable functional groups in the polymer backbone. The high performance polymer membranes showed significantly improved permeability for gas separations compared to the aromatic polyimide membranes without any treatment. The high performance polymer membranes also showed significantly improved selectivity for gas separations compared to the thermal-treated but non-UV-crosslinked aromatic polyimide membranes. The high performance polymer membranes of the present invention are suitable for liquid, gas, and vapor separations, as well as for catalysis and fuel cell applications.
    • 本发明公开了一种衍生自芳族聚酰亚胺膜的新型高性能聚合物膜以及制造和使用这些膜的方法。 本发明中描述的聚合物膜通过交联然后进行热处理从芳族聚酰亚胺膜衍生而来。 芳族聚酰亚胺膜由芳族聚酰亚胺聚合物制成,其中包含杂环酰亚胺氮原子的邻接羟基官能团和聚合物主链中的可交联官能团。 与没有任何处理的芳族聚酰亚胺膜相比,高性能聚合物膜显示出显着改善气体分离的渗透性。 与热处理但非UV交联的芳族聚酰亚胺膜相比,高性能聚合物膜还显示出对气体分离的选择性显着提高。 本发明的高性能聚合物膜适用于液体,气体和蒸汽分离,以及催化和燃料电池应用。