本文以粘度法研究在苯溶剂中,ε-己内酯负离子开环聚合过程,增长链活性种烷氧基锂(—O~-Li~+)的缔合,发现己内酯活性种的缔合和一般非极性单体不同,前者在聚合过程中(单体消耗完以前)并不发生缔合。在单体消耗完以后,聚己内酯活性种才确实以缔合体的形式存在。这是由于内酯本身贡献了强的溶剂化作用。 In this paper, the viscosity method was used to study the ring-opening polymerization of ε-caprolactone anion in benzene solvent to increase the association of alkyloxy lithium (-O ~ -Li ~ +) with chain active species. It was found that the activity of caprolactone active species He combined with the general non-polar monomer is different, the former in the polymerization process (monomer consumption before) does not occur association. After the monomer is consumed, the polycaprolactone active species do exist in the form of associations. This is due to the fact that lactones contribute strongly to solvation.