Preparation of low molecular weight styrene-maleic anhydride cop

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

1983-02-22

1984-05-22

Schofer, Joseph L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526224, 526272, 525353, C08F 238, C08F 836, C08F23610

Patent

active

044502613

ABSTRACT:
Styrene and maleic anhydride monomers are copolymerized in 1,2-dichloroethane employing 3-mercaptopropionic acid or methyl-3-mercaptopropionate 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.

REFERENCES:
patent: 2606891 (1952-08-01), Rowland
patent: 2635090 (1953-04-01), Basdekis
patent: 3072619 (1963-01-01), Turbak
patent: 3085994 (1963-04-01), Muskat
patent: 3388109 (1968-06-01), Hawkins
patent: 3730900 (1973-05-01), Perricone et al.
patent: 3960824 (1976-06-01), Hicks

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