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    • 65. 发明授权
    • Process for forming membrane having a hydrophobic fluoropolymer surface
    • 用于形成具有疏水性含氟聚合物表面的膜的方法
    • US5554414A
    • 1996-09-10
    • US421126
    • 1995-04-12
    • Wilson MoyaPhilip M. Goddard
    • Wilson MoyaPhilip M. Goddard
    • B01D67/00B05D5/08B05D5/00
    • B01D67/0088B05D5/08
    • A composite porous article is formed from a porous polymeric substrate having its entire surface modified with a cross-linked polymer which results in a hydrophobic and oleophobic surface. The composite retains substantially all of the other original properties of the substrate. The cross-linked polymer is formed in situ on the polymeric substrate from a reactant system comprising an ethylenically unsaturated monomer having at least one fluoroalkyl group, a cross-linker, and, if needed, a polymerization initiator, dissolved in a polar solvent system. The porous substrate saturated with the reactant system is exposed to a suitable energy source to effect polymerization and cross-linking of the monomer.
    • 复合多孔制品由其整个表面用交联聚合物改性的多孔聚合物基材形成,其导致疏水和疏油表面。 复合材料基本上保留了基材的所有其它原始性能。 交联聚合物在聚合物基材上由包含具有至少一个氟代烷基的烯属不饱和单体,交联剂和如果需要的溶解在极性溶剂体系中的聚合引发剂的反应体系原位形成。 用反应物系统饱和的多孔基材暴露于合适的能量源以实现单体的聚合和交联。