HIGH MOLECULAR WEIGHT IONENE POLYMERIC COMPOSITIONS

摘要

1362134 lonene graft polymers BUCKMAN LABORATORIES Inc 29 Feb 1972 [30 March 1971] 9367/72 Headings C3R and C3P Ionene graft polymers comprise backbone polymers having grafted thereon polymeric side chains containing ionic amino groups, the graft polymers having molecular weights of at least 20,000. The graft polymers are obtained by reacting a dihalo organic compound with a secondary or ditertiary amine to obtain a polymer containing ionic amino groups and having one or two tertiary amino end groups which is then coupled with a backbone polymer by means of a bifunctional coupling agent to form side chains. In examples polymers containing ionic amino groups are obtained by reacting N,N,N1,N1 - tetramethylethylene diamine with dichloroethyl ether, by reacting N,N,N1,N1- tetramethylethylene - diamine with 1,4 - bis- (chloromethyl) benzene, by reacting 2,21-dimethylaminoethyl ether with dichloroethylether by reacting N,N,N1,N1-tetramethylbutene- 2-diamine with 1,4-dichloro-2-butene, by reacting N,N1-dimethylpiperazine with dichloroethyl ether, by reacting N,N,N1,N1-tetramethylhexanediamine with 1,4-dichlorobutane, and by reacting N,N,N1,N1 - tetramethyl - propanediamine with dichloroethyl ether; the ionene polymers so-obtained are grafted on to polyacrylic acid, polyethylenimine, tetraethylene pentamine, carboxymethyl cellulose, polyhydroxy-methylacrylamide, polyvinyl alcohol and a partial hydrolysis product of polyacrylonitrile, the coupling agent being epichlorhydrin. Uses.-As flocculants and in the manufacture of paper.