Modified siliceous chromatographic supports
First Claim
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1. A modified silica material which comprises:
- (1) silica covalently bonded to a synthetic polymer;
(2) said synthetic polymer comprising a copolymer made from a free-radical polymerization of(a) a polymerizable compound containing an epoxy group capable of direct covalent coupling to a hydroxy group of said silica and a vinyl group, capable of free-radical polymerization; and
(b) a polymerizable compound having the formula ##STR10## wherein R is an alpha, beta-ethylenically unsaturated polymerizable radical, R'"'"' and R" are the same or different C1 -C6 alkyl or alkanoyl groups, and R'"'"'" is a direct bond or a C2 -C3 alkyl group, wherein R'"'"' and R", taken together with the N atom may form a heterocyclic ring.
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Abstract
A modified silica material which comprises silica covalently bonded to a synthetic polymer, the synthetic polymer being made from (a) a polymerizable compound capable of being covalently coupled directly to said silica, and (b) one or more polymerizable compounds containing (i) an ionizable chemical group, (ii) a chemical group capable of transformation to an ionizable chemical group, (iii) a chemical group capable of causing the covalent coupling of the compound (b) to an affinity ligand or a biologically active molecule or (iv) a hydrophobic compound.
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Citations
36 Claims
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1. A modified silica material which comprises:
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(1) silica covalently bonded to a synthetic polymer; (2) said synthetic polymer comprising a copolymer made from a free-radical polymerization of (a) a polymerizable compound containing an epoxy group capable of direct covalent coupling to a hydroxy group of said silica and a vinyl group, capable of free-radical polymerization; and (b) a polymerizable compound having the formula ##STR10## wherein R is an alpha, beta-ethylenically unsaturated polymerizable radical, R'"'"' and R" are the same or different C1 -C6 alkyl or alkanoyl groups, and R'"'"'" is a direct bond or a C2 -C3 alkyl group, wherein R'"'"' and R", taken together with the N atom may form a heterocyclic ring. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification