| abstract |
Anionic polymerisation initiators comprise the association, in an aprotic solvent, of an alkali amide and at the salt of the same alkali metal of >=1 hydroxy cpd. Used for the (co)polymerisation of vinyl, heterocyclic and diene monomers which polymerise anionically by the opening of aa ethylenic double bond or of a heterocycle in the presence of a solvent, e.g. styrene, methyl methacrylate etc. The initiators are efficient and are satisfactory for industrial purposes. |