Linear chemoselective carbosilane polymers and methods for use in analytical and purification applications
US6660230B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2001 |
| Grant date | Dec 9, 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 polycarbosilane compounds for use in various analytical applications involving sorbent polymer materials, including chromatoghraphy, 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 phenol groups, having the general structure: wherein n is an integer greater than 1;wherein at least one of R1 and R2 is a linear or branched arm having at least one group independently selected from the group consisting of alkyl, alkenyl, alkynyl, and aryl groups, or combinations thereof, and having at least one halogen substituted alcohol or phenol groups attached thereto;wherein any said R1 and R2 aryl groups are attached to said [Si—X—]n either directly or through a short hydrocarbon chain;wherein any remaining said R1 or R2 group is a hydrocarbon or carbosilane group;wherein X is a polymer component selected from the group consisting of alkylene, alkenylene, alkynylene, arylene groups, and comb…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.