Anionic polymerization of 6‐hexanelactam, 62. Fast catalytic systems in the anionic polymerization of 6‐hexanelactam

摘要整理

Abstract With magnesium 6‐hexanelactamate bromide (LMgBr) as a catalyst and the N ‐acyllactam as initiator an exceptionally high rate of polymerization of 6‐hexanelactam is observed. Side reactions decreasing the concentrations of growth centres and activated monomer (lactam anion) are not affected to such an extent as to explain this acceleration. In the presence of poly(propylene oxide), the side reactions are largely suppressed with LMgBr. The results corroborate the assumption that the reactivity of the N ‐acyllactam growth centre is increased by coordination of a magnesium bromide ligand.

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