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公开(公告)号:US06709491B2
公开(公告)日:2004-03-23
申请号:US10227297
申请日:2002-08-26
IPC分类号: B01D7164
CPC分类号: B01D67/009 , B01D53/228 , B01D67/0009 , B01D67/0032 , B01D67/0072 , B01D71/64 , B01D2323/12 , B01D2325/022 , Y02C20/20 , Y10S55/05
摘要: The object of the present invention is to provide a novel gas separation membrane having a high gas permeability and a high gas selectivity, and a method of producing the same. The present invention provides a gas separation membrane comprising a polymeric material soluble in an organic solvent, wherein at least a part of the surface is modified by ion bombardment.
摘要翻译: 本发明的目的在于提供一种气体透过性高,气体选择性高的新型气体分离膜及其制造方法。 本发明提供了一种气体分离膜,其包含可溶于有机溶剂的聚合材料,其中表面的至少一部分被离子轰击改性。
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公开(公告)号:US06790263B1
公开(公告)日:2004-09-14
申请号:US09661902
申请日:2000-09-14
申请人: Yong Ding , Benjamin Bikson , Joyce Katz Nelson
发明人: Yong Ding , Benjamin Bikson , Joyce Katz Nelson
IPC分类号: B01D7164
CPC分类号: C08G73/10 , B01D53/228 , B01D69/12 , B01D71/64 , B01D71/82
摘要: Soluble polyamic acid salt (PAAS) precursors comprised of tertiary and quaternary amines, ammonium cations, sulfonium cations, or phosphonium cations, are prepared and fabricated into membranes that are subsequently imidized and converted into rigid-rod polyimide articles, such as membranes with desirable gas separation properties. A method of enhancing solubility of PAAS polymers in alcohols is also disclosed.
摘要翻译: 制备由叔胺和季胺,铵阳离子,锍阳离子或鏻阳离子组成的可溶性聚酰胺酸盐(PAAS)前体,并将其制成膜,随后将其酰亚胺化并转化为刚性聚酰亚胺制品,例如具有所需气体的膜 分离性能。 还公开了增加PAAS聚合物在醇中的溶解度的方法。
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