Modified polysaccharide supports
First Claim
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1. A modified polysaccharide material which comprises:
- (1) a water insoluble polysaccharide 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 polysaccharide and a vinyl group, capable of free-radical polymerization; and
(b) a polymerizable compound having the formula ##STR11## wherein R is an alpha, beta-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 polysaccharide material which comprises: (1) polysaccharide covalently bonded to a synthetic polymer; (2) the synthetic polymer being made from (a) a polymerizable compound which is capable of being covalently coupled directly or indirectly to said polysaccharide, and (b) one or more polymerizable compounds containing (i) an ionizable chemcial 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.
129 Citations
26 Claims
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1. A modified polysaccharide material which comprises:
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(1) a water insoluble polysaccharide 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 polysaccharide and a vinyl group, capable of free-radical polymerization; and (b) a polymerizable compound having the formula ##STR11## wherein R is an alpha, beta-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, 20, 21)
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19. The process of claim 56 wherein said bifunctional cross-linking agent is selected from ##STR14## where Hal is halogen atom, or ##STR15## and n is 2 to 12.
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22. A process for effecting chromatographic separation of at least two components of a sample comprising contacting said sample with a self-supporting fibrous matrix comprising a modified polysaccharide material, said modified polysaccharide material comprising:
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(1) a water insoluble polysaccharide 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 polysaccharide and a vinyl group, capable of free-radical polymerization; and (b) a polymerizable compound having the formula ##STR16## 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 (23, 24, 25, 26)
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Specification