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研究了萘-锂-四氢呋喃(THF)络合反应体系及齐聚二烯烃双锂引发剂的稳定性。结果表明:萘-锂-THF络合物与萘-钠-THF结构相似,但络合反应更易;齐聚二烯烃双锂引发剂的稳定性受温度、THF浓度的影响;聚丁二烯双锂较聚异戊二烯双锂稳定,单锂化反应严重影响着引发剂的官能度。
The stability of naphthalene-lithium-tetrahydrofuran (THF) complexation system and oligodiene double lithium initiator was studied. The results show that the structure of naphthalene-lithium-THF complexes is similar to that of naphthalene-sodium-THF, but the complexation reaction is more easy. The stability of oligodiene double lithium initiator is affected by temperature and THF concentration. Polybutadiene bis Lithium is more stable than polyisoprene double lithium, single-lithiated reaction seriously affect the functionality of the initiator.