发明名称 |
Hydrophilic block copolymers and method of preparation thereof (III) |
摘要 |
Disclosed are block copolymers suitable for preparing hydrophilic porous membranes, wherein the block copolymers are of the formula: A-B-A (I) and A-B (II), wherein block A is (i) a copolymer of glycidol and allyl glycidyl ether, the copolymer having one or more allyl groups; or (ii) a copolymer of glycidol and allyl glycidyl ether, wherein one or more of the allyl groups of the copolymer have been replaced with 1,2-dihydroxypropyl group or a group of the formula: —(CH2)a—S—(CH2)b—X, wherein a, b, and X are as defined herein, and block B is an aromatic hydrophobic polymeric segment, for example, polyethersulfone. Also disclosed is a method of preparing such block copolymers. |
申请公布号 |
US9260569(B2) |
申请公布日期 |
2016.02.16 |
申请号 |
US201414320400 |
申请日期 |
2014.06.30 |
申请人 |
Pall Corporation |
发明人 |
Ait-Haddou Hassan;Onyemauwa Frank |
分类号 |
C08G75/23 |
主分类号 |
C08G75/23 |
代理机构 |
Leydig, Voit & Mayer, Ltd. |
代理人 |
Leydig, Voit & Mayer, Ltd. |
主权项 |
1. A block copolymer of the formula: A-B-A (I) or A-B (II), wherein block A is:
(ii) a copolymer of glycidol and allyl glycidyl ether, wherein one or more of the allyl groups of the copolymer have been replaced with a group of the formula: —(CH2)a—S—(CH2)b—X, wherein a is 3 and b is 1 to 3, and X is selected from an acidic group, a basic group, a cation, an anion, a zwitterion, halo, hydroxyl, acyl, acyloxy, alkylthio, alkoxy, aldehydo, amido, carbamoyl, ureido, cyano, nitro, epoxy, a group of the formula —C(H)(COOH)(NH2), and a group of the formula —C(H)(COOH)(NHAc), or a salt thereof; and block B is an aromatic hydrophobic polymeric segment. |
地址 |
Port Washington NY US |