METHOD FOR PRODUCING PEROXYDICARBONATE AND ITS USE IN RADICAL POLYMERIZATION OF MONOMER

摘要

PROBLEM TO BE SOLVED: To provide a method for producing peroxydicarbonates comprising first reacting at least one inorganic peroxide with at least one alkali metal hydroxide to form at least one alkali metal peroxide.

SOLUTION: The at least one alkali metal peroxide is added to a mixture of at least one haloformate, at least one dispersant, and water. The mixture is homogenized during the entire reaction to form a peroxydicarbonate. The peroxydicarbonate is dispersed as small droplets of from 1 to 10 μm in size in the aqueous mixture. The entire mixture is added to a polymerization reactor containing an ethylenically unsaturated monomer. The peroxydicarbonate functions as the free radical initiator to polymerize the monomer. The peroxydicarbonate is substantially free of organic solvents and plasticizers. The resulting polymers are of high quality.

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