초록 ▼

A porous material is disclosed, made of a semi IPN type polymer alloy of a crosslinked polymer (A) obtained by the crosslinking polymerization of a crosslinking-polymerizable vinyl monomer and/or oligomer (a) with a non-crosslinked polymer (D) which is soluble in a solvent (B) capable of dissolving

A porous material is disclosed, made of a semi IPN type polymer alloy of a crosslinked polymer (A) obtained by the crosslinking polymerization of a crosslinking-polymerizable vinyl monomer and/or oligomer (a) with a non-crosslinked polymer (D) which is soluble in a solvent (B) capable of dissolving said monomer and/or oligomer (a) therein and subjecting said crosslinked polymer (A) to gelation but is insoluble in a coagulating solution (C) which is compatible with said solvent (B) but doesn't subject said crosslinked polymer (D) to gelation. A porous material excellent in mechanical strength as well as in heat resistance can be prepared. Various functional groups can be introduced into the surface of the porous material. Further, the pore diameter can be easily controlled. The porous material of the present invention is excellent in physical properties such as strength, hardness and heat resistance as well as in chemical and biological properties such as non-adsorptivity and selective adsorptivity of protein.

대표청구항 ▼

[ What is claimed is:] [1.]1. A process for the preparation of a porous material, which comprises shaping a polymerizable solution (I) containing as essential components a crosslinking-polymerizable vinyl monomer and/or oligomer (a) which is a mixture of (I) a monofunctional monomer and /or oligomer

[ What is claimed is:] [1.]1. A process for the preparation of a porous material, which comprises shaping a polymerizable solution (I) containing as essential components a crosslinking-polymerizable vinyl monomer and/or oligomer (a) which is a mixture of (I) a monofunctional monomer and /or oligomer having a hydrophilic structure moiety covalently having a hydrophilic group which is selected from the group consisting of polyethylene glycol group, polyoxymethylene group, saccharide containing group, amide group, carboxyl group, sulfonic group, phosphorous acid group, amine group, ammonium group, amino acid-containing group and ammonium/phosphoric acid containing group, and (ii) a multi functional monomer and or oligomer free of hydrophilic structure, and a solvent (B) capable of dissolving said monomer and/or oligomer (a),crosslinking-polymerizing the polymerizable solution I to produce a gel formed product of crosslinked polymer (A);subjecting the crosslinked polymer (A) to gelation, andallowing the gel formed product to come in contact with a coagulation solution .COPYRGT. which is compatible with said solvent (B) but doesn't subject said crosslinked polymer (A) to gelation so that it is coagulated and rendered porous, wherein said polymerizable solution (I) comprises at least one non-crosslinked polymer which is soluble in said solvent (B) but insoluble in said coagulation solution .COPYRGT. and is selected from the group consisting of polysulfone polymer, amide polymer, imide polymer, styrene polymer and cellulose polymer, said membrane exhibits a contact angle of not more than 55 degrees with respect to water.