Inventors:
- Sunnyvale CA, US
Xiao CUI - Sunnyvale CA, US
Xuefei SUN - San Jose CA, US
Assignee:
Dionex Corporation - Sunnyvale CA
International Classification:
B01J 20/287
B01D 15/20
C07H 15/234
C07H 15/232
C07H 15/23
B01J 20/32
C07H 1/06
C07D 493/04
C07H 15/238
B01D 15/32
B01J 20/289
B01J 20/30
C08G 77/392
C07H 15/224
Abstract:
A chromatographic material including a substrate having a surface and having a polymeric layer covalently bound to the surface; the polymeric layer comprising polymer molecules covalently attached to the surface of the substrate, each polymer molecule being attached to the surface via multiple siloxane bonds and each polymer molecule being connected to one or more functionalizing compounds that each comprise a functional group, wherein the polymeric layer is formed by covalently attaching polymer molecules to the surface of the substrate via multiple siloxane bonds, each polymer molecule containing multiple first reactive groups, and reacting the first reactive groups of the attached polymer molecules with at least one functionalizing compound that comprises a second reactive group that is reactive with the first reactive groups and that further comprises a functional group. Preferred conditions of reacting the polymer with the substrate include elevated temperature and reduced pressure.