Patent ID: 7265236
Filing Date: 2007-09-04
Classification: C07F

Abstract:
1. A polypodal silane compound for use as a bonded phase and having hydrophilicity, comprising at least two podal branches bonded via an ether linkage or alkoxy group to a hydrophilic group, wherein each podal branch has a silicon atom, the silicon atoms are bonded to each podal branch through a Si—C bond and each of the podal branches is capable of bonding to a siliceous substrate through at least one hydrolyzable functional group capable of being displaced by a Si—O bond, and wherein the compound has a structure according to Formula (I): wherein: R R R R X is a hydrolyzable group capable of bonding to a siliceous substrate and of being displaced by a silicon-oxygen bond or a non-hydrolyzable organic functional group, wherein at least one of the X groups on each Si atom is hydrolyzable; n is 0 or an integer which is no greater than 3; y is 0 or an integer which is no greater than 3; and wherein 2≦n+y≦3; and n and y are never both zero.