Process for the preparation of polymers of vinylphosphonic...

Details Process for the preparation of polymers of vinylphosphonic... Process for the preparation of polymers of vinylphosphonic...

C - Chemistry, Metallurgy

08

F

402/357, 400/820

C08F 30/02 (2006.01)

Patent

CA 1241143

HOE 82/F 274 Abstract of the disclosure: Process for the preparation of polymers of vinyl- phosphonic acid in protic diluents with the aid of cata- lysts which form free radicals, which comprises heating vinylphosphonic acid at temperatures of 40° to 130°C in a total of 10 to 150% by weight of protic diluents for a total of 4 - 60 hours in the presence of 1.0 to 5.5% by weight of aliphatic peroxy-esters, diacyl per- oxides and/or aliphatic azo compounds which decompose by half in one hour at temperatures below 122°C.

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