Joseph C Tran

US Patent:

7211192, May 1, 2007

Filed:

Mar 29, 2002

Appl. No.:

10/112573

Inventors:

Kenneth J. Shea - Irvine CA, US
Stephen T. Hobson - Gunpowder MD, US
Joseph Tran - San Diego CA, US

Assignee:

The Regents of the University of California - Oakland CA

International Classification:

B01D 11/00

US Classification:

210634, 210640, 210660, 210690

Abstract:

The present invention relates generally to hybrid organic-inorganic adsorbents for decontamination of fluids. Bridged poysilsesquioxanes are a family of hybrid organic-inorganic materials prepared by sol-gel processing of monomers that contain a variable organic bridging group and two or more trifunctional silyl groups. Specifically, the present invention relates to dipropylenedisulfide-co-phenylene-bridged polysilsesquioxane compositions, methods of making dipropylenedisulfide-co-phenylene-bridged polysilsesquioxanes, and methods of use of dipropylenedisulfide-co-phenylene-bridged polysilsesquioxanes. The present invention discloses properties of dipropylenedisulfide-co-phenylene-bridged polysilsesquioxanes that include high ligand loading, increased surface area, and increased porosity. These properties make dipropylenedisulfide-co-phenylene-bridged polysilsesquioxanes excellent adsorbents for decontamination of fluids for use in environmental and industrial processes.

US Patent:

20070203341, Aug 30, 2007

Filed:

Apr 26, 2007

Appl. No.:

11/740804

Inventors:

Kenneth Shea - Irvine CA, US
Stephen Hobson - Gunpowder MD, US
Joseph Tran - San Diego CA, US

International Classification:

C07F 7/02
C07D 307/02
C07D 333/02

US Classification:

546014000, 549029000, 549429000, 556433000

Abstract:

The present invention relates generally to hybrid organic-inorganic adsorbents for decontamination of fluids. Bridged poysilsesquioxanes are a family of hybrid organic-inorganic materials prepared by sol-gel processing of monomers that contain a variable organic bridging group and two or more trifunctional silyl groups. Specifically, the present invention relates to dipropylenedisulfide-co-phenylene-bridged polysilsesquioxane compositions, methods of making dipropylenedisulfide-co-phenylene-bridged polysilsesquioxanes, and methods of use of dipropylenedisulfide-co-phenylene-bridged polysilsesquioxanes. The present invention discloses properties of dipropylenedisulfide-co-phenylene-bridged polysilsesquioxanes that include high ligand loading, increased surface area, and increased porosity. These properties make dipropylenedisulfide-co-phenylene-bridged polysilsesquioxanes excellent adsorbents for decontamination of fluids for use in environmental and industrial processes.