Packing material and method for producing the same, and column for size exclusion chromatography
A packing material, wherein to a porous organic polymer carrier including 60 to 95 mol % of a repeating unit derived from glycidyl methacrylate and 5 to 40 mol % of a repeating unit derived from a polyfunctional monomer, one end of at least one alkylene group selected from a linear alkylene group, a cycloalkylene group, and a linear alkylcycloalkylene group, having 4 to 9 carbon atoms is bonded by a glycidyl group derived from glycidyl methacrylate, and an other end of the alkylene group is bonded to any one end of a polyol via an ether bond.
1. A packing material, comprising
a porous organic polymer carrier comprising 60 to 95 mol % of a repeating unit derived from glycidyl methacrylate and 5 to 40 mol % of a repeating unit derived from a polyfunctional monomer,
wherein one end of at least one alkylene group selected from the group consisting of a linear alkylene group, a cycloalkylene group, and a linear alkylcycloalkylene group, having 4 to 9 carbon atoms, is bonded to the porous organic polymer by a glycidyl group derived from glycidyl methacrylate, and
an other end of the alkylene group is bonded to any one end of a polyol via an ether bond.
2. The packing material according to claim 1 , wherein the polyfunctional monomer is a (meth)acryloyl-based monomer comprising two or more (meth)acryloyl groups.
3. The packing material according to claim 2 , wherein the polyfunctional monomer comprises at least one selected from the group consisting of ethylene glycol dimethacrylate and glycerin-1,3-dimethacrylate.
4. The packing material according to claim 1 , wherein the alkylene group comprises either butylene or cyclohexane-1,4-dimethylene.
5. The packing material according to claim 1 , wherein the polyol is bonded via an ether bond derived from a glycidyl group ring-opened by the polyol.
6. The packing material according to claim 1 , wherein the polyol comprises any of ethylene glycol, polyethylene glycol, and sorbitol.
7. The packing material according to claim 1 , wherein the packing material is for size exclusion chromatography.
8. A method for producing the packing material according to claim 1 , the method comprising the following steps (A) to (D):
a step (A) of polymerizing a raw material monomer comprising glycidyl methacrylate and a polyfunctional monomer in the presence of a diluent and a polymerization initiator to obtain a carrier α, which is a porous organic polymer carrier,
a step (B) of reacting a glycidyl group derived from glycidyl methacrylate of the carrier α with one hydroxyl group of a diol compound comprising a linear or aliphatic ring-containing alkylene group having 4 to 9 carbon atoms in a structure thereof to obtain a carrier β to which an end of the diol compound comprising the alkylene group in the structure thereof is bonded;
a step (C) of reacting an other hydroxyl group of the diol compound comprising the alkylene group in the structure thereof bonded to the carrier β with epichlorohydrin to obtain a carrier γ in which a glycidyl group is introduced into the carrier β; and
a step (D) of reacting the glycidyl group of the carrier γ with a hydroxyl group of a polyol in the presence of water to obtain a carrier δ to which any one end of the polyol is bonded as an ether bond.
9. A column for size exclusion chromatography, comprising a housing for liquid chromatography and the packing material according to claim 7 packed into the housing for liquid chromatography.