Linear and branched chemoselective siloxane polymers and methods for use in analytical and purification applications
US6630560B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2001 |
| Grant date | Oct 7, 2003 |
| Priority date | — |
| Expiry date | Jul 2, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/17
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention relates generally to a new class of chemoselective polymer materials. In particular, the invention relates to linear and branched polysiloxane compounds for use in various analytical applications involving sorbent polymer materials, including chromatography, chemical trapping, analyte collection, and chemical sensor applications. These polymers have pendant and terminal aryl, alkyl, alkenyl, and alkynyl groups that are functionalized with halogen substituted alcohol or halogen substituted phenol groups, having the general structure: wherein:n is an integer greater than 1;wherein at least one of R1 and R2 includes an alkyl, alkenyl, alkynyl, or aryl group having at least one halogen substituted alcohol or halogen substituted phenol group attached thereto;wherein any said R1 and R2 aryl groups are attached to said [Si—O—]n, the polymer backbone, directly or through a short hydrocarbon chain;wherein any remaining R1 or R2 group is an alkyl, alkenyl, alkynyl, or aryl group having between one and sixteen carbons; andZ is a polymer end group independently selected from the group consisting of saturated hydrocarbons, unsaturated hydrocarbons, alkyl silanes, aryl…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.