发明名称 |
HIGH PERFORMANCE CROSS-LINKED POLYBENZOXAZOLE AND POLYBENZOTHIAZOLE POLYMER MEMBRANES |
摘要 |
In the present invention high performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes and methods for making and using these membranes have been developed. The cross-linked polybenzoxazole and polybenzothiazole polymer membranes are prepared by: 1) first synthesizing polyimide polymers comprising pendent functional groups (e.g., -OH or -SH) ortho to the heterocyclic imide nitrogen and cross-linkable functional groups in the polymer backbone; 2) fabricating polyimide membranes from these polymers; 3) converting the polyimide membranes to polybenzoxazole or polybenzothiazole membranes by heating under inert atmosphere such as nitrogen or vacuum; and 4) finally converting the membranes to high performance cross-linked polybenzoxazole or polybenzothiazole membranes by a crosslinking treatment, preferably UV radiation. The membranes can be fabricated into any convenient geometry. The high performance cross-linked polybenzoxazole and polybenzothiazole polymer membranes of the present invention are suitable for a variety of liquid, gas, and vapor separations. |
申请公布号 |
WO2010110975(A3) |
申请公布日期 |
2011.02.17 |
申请号 |
WO2010US24855 |
申请日期 |
2010.02.22 |
申请人 |
UOP LLC;LIU, CHUNQING;TANG, MAN-WING;SERBAYEVA, RAISA;ZHOU, LUBO |
发明人 |
LIU, CHUNQING;TANG, MAN-WING;SERBAYEVA, RAISA;ZHOU, LUBO |
分类号 |
B01D71/64;B01D67/00;C08G73/22;C08G75/32;C08J5/22 |
主分类号 |
B01D71/64 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|