发明名称 |
UV-assisted grafting of PES and PSF membranes |
摘要 |
An ultrafiltration membrane is modified to exhibit low protein fouling and yet maintains a greater fraction of the original membrane permeability and retention properties after modification. This is achieved by grafting monomer onto the surface of a highly photoactive membrane such as polyethersulfone, via the process of dipping the polymeric membrane into a solution containing one or more monomers and a chain transfer agent, removing the membrane from the solution, securing the membrane inside of a quartz vessel contained within another vessel of liquid filter, and irradiating the membrane with a UV light at a wavelength between the range of 280 nm and 300 nm. High density grafting and shorter grafted monomer chain length result in low protein fouling and retention of permeability.
|
申请公布号 |
US6852769(B2) |
申请公布日期 |
2005.02.08 |
申请号 |
US20030398051 |
申请日期 |
2003.04.01 |
申请人 |
RENSSELAER POLYTECHNIC INSTITUTE |
发明人 |
BELFORT GEORGES;CRIVELLO JAMES V.;PIERACCI JOHN |
分类号 |
B01D67/00;B01D69/02;B01D71/68;B01D71/78;C08F261/00;C08F273/00;C08F291/06;C08F291/14;C08J7/18;C08L51/08;(IPC1-7):C08J3/28;C08L81/06;C08F283/00;B01D39/00 |
主分类号 |
B01D67/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|