Abstract
L.K. Ltr~V.¢ etag. liquid I~H s , and by solid KI~H~ without a solvent, has been carried out at --50 °. Methyl methacrylate has been polymerized at--70 ° in a solution of l~al~H2 in ammonia and on a suspension of ~a~H2 in this solution. (3) The extent to which the molecular weight of polymers obtained on suspensions of amides is greater than that of polymers prepared in a solution of an amide differs for different monomers and rn~y be dependent on the cation of the initiator. (3) As a rule polymers of considerably higher molecular weight are formed on the surface of the solid amide than when polymerization is initiated by a solution of the amide in liquid ammonia.
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