CPC C08F 120/20 (2013.01) | 4 Claims |
1. A method for preparing branched poly (2-hydroxyethyl methacrylate) at room temperature by inverse emulsion polymerization, the method comprising:
using benzoyl peroxide (BPO) as an oxidant and 2-methyl-N-[3-(methyl-phenyl-amino)-propyl]-acrylamide (MPAEMA) as a reductant monomer to form a redox initiation system, water and toluene as media, emulsifiers, 2-hydroxyethyl methacrylate as a polymer monomer, and obtaining branched poly (2-hydroxyethyl methacrylate) by a reaction at the room temperature through radical inverse emulsion polymerization, wherein
a ratio of amount of substance of the oxidant monomer and amount of substance of the reductant monomer is 1:1;
the polymer monomer is added to water to dissolve to form an aqueous solution with a concentration of 25%;
a reaction temperature of the polymerization is 25° C.;
a reaction time of the polymerization is 8 hours;
a ratio of amount of substance of the reductant monomer and amount of substance of the polymer monomer is 1:80-1:160; and
a mass ratio of water phase and toluene is 1:1.
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