Block copolymers including acrylonitrile sequences and...

Details Block copolymers including acrylonitrile sequences and... Block copolymers including acrylonitrile sequences and...

C - Chemistry, Metallurgy

08

G

400/2017

C08G 81/02 (2006.01)

Patent

CA 1188441

Abstract of the Disclosure There is disclosed novel block copolymers formed of acrylc nitrile sequences and sequences containing at least about 50 mole percent of acrylamide units and at most about 50 of units selected from the group consisting of carboxyl, ester, amide, hydrazide and hydroxylamide units and formed by reacting a block copolymer having acrylonitrile sequences and sequences of glutarimide units with a low molecular weight compound having a functional group selected from the group consisting of hydroxyl, primary amino, secondary amino, hydrazo and hydroxylamino group. The reaction is effected ata pH of about 7.5 and higher, preferably in the presence of a solvent and/or swelling agent.

403627

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