发明名称 |
POLYMERIC MEMBRANES AND POLYMER ARTICLES HAVING HYDROPHILIC SURFACE AND METHOD FOR THEIR PREPARATION |
摘要 |
<p>Polymeric articles, including membranes, with surfaces having a desired chemical functionality are created by surface segregation of a branched component blended with a compatible, matrix base component, the branched component having the desired chemical functionality. In particular, hydrophilic surfaces are created via surface segregation of a branched hydrophilic copolymer blended into a polymer matrix. The use of branched molecular architecture provides a thermodynamic mechanis m for the segregation of the hydrophilic species to the surface and a means for achieving a high surface coverage of the hydrophilic moiety. The branched hydrophilic copolymer can be defined by a random copolymer including two or more methacrylate or acrylate monomer s, at least one of which features a short hydrophilic side chain, such as a polyethylene glycol side chain. The branched hydrophilic copolymer is compatible, and well-entangled, with the acrylate polymer matrix.</p> |
申请公布号 |
CA2263582(C) |
申请公布日期 |
2004.03.30 |
申请号 |
CA19972263582 |
申请日期 |
1997.08.26 |
申请人 |
MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
发明人 |
WALTON, DAVID G.;MAYES, ANNE M.;HESTER, JONATHAN F. |
分类号 |
B01D71/06;B01D67/00;B01D69/14;B01D71/34;B01D71/40;B01D71/80;B01D71/82;B01J45/00;C08F20/10;C08J3/00;C08L33/00;C08L101/00;(IPC1-7):B01D67/00 |
主分类号 |
B01D71/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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