Composite polyamide membrane with branched poly(alkylene oxide) modified surface
    3.
    发明授权
    Composite polyamide membrane with branched poly(alkylene oxide) modified surface 有权
    具有支链聚(环氧烷)改性表面的复合聚酰胺膜

    公开(公告)号:US07918349B2

    公开(公告)日:2011-04-05

    申请号:US12404642

    申请日:2009-03-16

    IPC分类号: B01D71/56 B01D71/52 B01D71/00

    摘要: Composite membranes that exhibit long-term resistance to biofouling comprise a porous support and a crosslinked polyamide discriminating layer having an external surface, the discriminating layer comprising a branched poly(alkylene oxide) (PAO) polymer attached to its external surface. The branched PAO polymer typically has the structure of a molecular comb or brush, and is made by polymerization of a PAO macromonomer of the following formula: RO—[(CHR′)n—O]m—V in which R is hydrogen or a C1-20 aliphatic or aromatic group, V is any group containing a polymerizable site, each R′ is independently hydrogen or a short chain alkyl group, n is an integer of 1-6, and m is an integer of 1 to about 200. The α end group can be either polymerized or copolymerized.

    摘要翻译: 表现出对生物污损的长期抗性的复合膜包括多孔载体和具有外表面的交联聚酰胺鉴别层,所述鉴别层包含连接到其外表面的支化聚(环氧烷)(PAO)聚合物。 支化PAO聚合物通常具有分子梳或刷的结构,并且通过下列通式的PAO大分子单体的聚合制备:RO - [(CHR')n-O] m-V,其中R是氢或 C 1-20脂族或芳族基团,V是含有可聚合位点的任何基团,每个R'独立地为氢或短链烷基,n为1-6的整数,m为1至约200的整数。 α端基可以聚合或共聚。

    MODIFIED SULFONAMIDE POLYMERIC MATRICES
    6.
    发明申请
    MODIFIED SULFONAMIDE POLYMERIC MATRICES 审中-公开
    改性磺酰胺聚合物基质

    公开(公告)号:US20120152839A1

    公开(公告)日:2012-06-21

    申请号:US12973144

    申请日:2010-12-20

    摘要: The present disclosure relates to a matrix comprising a modified sulfonamide polymer, processes for producing the same and uses thereof. In particular, the matrix comprises sulfonyl compound residues and aliphatic amine compound residues, and further comprises acyl compound residues and amine compound residues having at least two amine moieties, wherein the aliphatic amine compound residues and amine compound residues are different.

    摘要翻译: 本公开涉及包含改性磺酰胺聚合物的基质,其制备方法及其用途。 特别地,基质包括磺酰化合物残基和脂族胺化合物残基,并且还包含具有至少两个胺部分的酰基化合物残基和胺化合物残基,其中脂族胺化合物残基和胺化合物残基不同。

    Modified polyamide membrane
    7.
    发明授权
    Modified polyamide membrane 有权
    改性聚酰胺膜

    公开(公告)号:US08002120B2

    公开(公告)日:2011-08-23

    申请号:US13017646

    申请日:2011-01-31

    IPC分类号: B01D39/14

    摘要: A modified polyamide membrane and method for making and using the same. The present invention includes many embodiments including methods comprising contacting a polyamide membrane with certain modifiers, including but not limited to certain oxazoline and/or thiazoline-based compounds, derivatives and polymers thereof. In one embodiment, the surface of a polyamide membrane is coated with a solution including a polyoxazoline and optionally a polyalkylene oxide material, followed by optional heating. Preferred embodiments may exhibit improved performance, e.g. increased rejection of certain species, (e.g. sodium chloride and/or boric oxides such as boric acid or various borate salts), reduced fouling, improved antimicrobial properties, and/or improved storage stability.

    摘要翻译: 改性聚酰胺膜及其制造和使用方法。 本发明包括许多实施方案,包括使聚酰胺膜与某些改性剂接触的方法,所述改性剂包括但不限于某些恶唑啉和/或噻唑啉基化合物,其衍生物和聚合物。 在一个实施方案中,聚酰胺膜的表面涂覆有包含聚恶唑啉和任选的聚环氧烷材料的溶液,然后任选加热。 优选实施例可以表现出改进的性能,例如。 某些物质(例如氯化钠和/或硼氧化物如硼酸或各种硼酸盐)的排斥反应增加,污垢减少,抗微生物特性改善和/或储存稳定性提高。