Preparation of low molecular weight styrene-maleic anhydride...

Details Preparation of low molecular weight styrene-maleic anhydride... Preparation of low molecular weight styrene-maleic anhydride...

C - Chemistry, Metallurgy

08

F

402/311

C08F 8/36 (2006.01) C08F 212/06 (2006.01) C08F 222/08 (2006.01)

Patent

CA 1203945

ABSTRACT OF THE DISCLOSURE Styrene and maleic anhydride monomers are copolymerized in 1,2- dichloroethane employing 3-mercaptopropionic acid or methyl-3-mercap- topropionate chain transfer agents producing an odorless copolymer in the molecular weight range of about 500 to 10,000 which remains soluble in the solvent. The resultant copolymer may be conveniently sulfonated in the 1,2-dichloroethane solvent used for the polymerization thereby producing an odorless sulfonated copolymer.

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