Method of making hydrophobic copolymers hydrophilic

Details Method of making hydrophobic copolymers hydrophilic Method of making hydrophobic copolymers hydrophilic

C - Chemistry, Metallurgy

08

F

402/451, 400/648

C08F 236/20 (2006.01) C08F 8/44 (2006.01) C08F 220/10 (2006.01) C08F 265/04 (2006.01) C08F 265/06 (2006.01)

Patent

CA 2012766

A method for altering a macroporous cross-linked hydrophobic copolymeric lattice produced by precipitation polymerization in a solvent of at least one monounsaturated ester monomer and at least one polyunsaturated ester monomer soluble therein, in order to render the hydrophobic copolymeric lattice hydrophilic. The method involves saponifying the hydrophobic copolymeric lattice by reacting the surface of the hydrophobic copolymeric lattice with an aqueous alkali. The surface can also be rendered hydrophilic by polymerizing an acrylate monomer onto the lattice in order to form a surface containing carboxylic acid sites. The carboxylic acid sites formed on the surface of the lattice are converted to carboxylate anions.

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