Structures surface modified with bidentate silanes

Details Structures surface modified with bidentate silanes Structures surface modified with bidentate silanes

B - Operations, Transporting

01

J

252/37

B01J 20/32 (2006.01) G01N 30/56 (2006.01) G01N 30/88 (2006.01)

Patent

CA 1303010

ABSTRACT OF THE DISCLOSURE The invention relates to an improved support comprising a substrate and a bidentate silane attached to the substrate, the bidentate silane containing at least two silicon atoms bridged by certain groups, so arranged that at least a seven-membered ring system is formed in the following manner: Image where, R1-R4 = alkane, substituted alkane, alkene, substituted alkene, aryl, or substituted aryl: Y = -CH2-, -CH2CH2-, -(CH2)n-, -(CHZ-CHZ)-, or -(CH2)nCHZ-, where Z = alkane, substituted alkane, alkene, sub- stituted alkene, aryl, substituted aryl, halogen, hydroxyl, hydrogen, nitrile, primary, secondary or tertiary or tetralkylamine, carbonyl, carboxyl, amide, sulfonic acid, nitro, nitroso, amide, sulfonamide, etc., n = 1-6, and A are the atoms on the substrate surface to which the silane is covalently attached, which is usefulfor a variety of applications, e.g. chromatographic separations.

551174

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