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1.发明公开REVERSE OSMOSIS MEMBRANE WITH BRANCHED POLY(ALKYLENE OXIDE) MODIFIED ANTIFOULING SURFACE 审中-公开具有改性的支链聚（环氧烷）表面ROT用于预防反渗透膜
公开(公告)号：EP2021107A2
公开(公告)日：2009-02-11
申请号：EP07760371.0
申请日：2007-04-10
CPC分类号： B01D69/125 , B01D61/025 , B01D67/0093 , B01D71/56 , B01D2323/30 , B01D2325/34 , Y02A20/131
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 C 1-20 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 alpha end group can be either polymerized or copolymerized.
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公开(公告)号：EP1758953A1
公开(公告)日：2007-03-07
申请号：EP04754861.5
申请日：2004-06-10
CPC分类号： C08L65/00 , B01D71/28 , B01D71/44 , C08J5/18 , C08J2365/00 , C08L25/06 , C08L25/08 , C09D165/00 , C08L25/00 , C08L2666/06
摘要： A method comprising forming a coating solution which comprises a matrix precursor material, a porogen material and a solvent, by selecting a polyarylene matrix precursor material which cross-links to form a matrix with a calculated cross-link moeity density of at least 0.003 moles/ml, and reacting the polyarylene matrix precursor material with a porogen which is linear oligomer or polymer which is formed from monomers comprising alkenyl or alkynyl functional monomers, which has reactive end groups and a weight average molecular weight in the range of less than about 5000, where the porogen is present in amounts in the range of about 10 to less than 50 percent by weight based on total weight of porogens and matrix precursor material.
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