高等学校化学学报2011，Vol.32Issue(8)：1881-1883,3.
原位生成三苄氧基钇催化ε-己内酯可控开环聚合
Controlled Ring-opening Polymerization of ε-Caprolactone Initiated by in situ Formed Yttrium Tribenzyloxide Complex
摘要
Abstract
Yttrium tribenzyloxide complex in situ formed by the reaction of yittrium trialkyl complex [ Y(CH2SiMe3)3(THF)2] with 3 mol benzyl alcohol were used as initiator for the controlled ring-opening polymerization( ROP) of fr-caprolactone(CL). 'H NMR studies indicated that the PCLs obtained were caped by a benzyloxyl group at one end and an alcohol at the other. The number average molecular weight measured by 'H NMR and GPC both increase linearly with the monomer/yttrium molar ratio with narrow molecular weight distribution(MWD). Moreover, the Mn measured by *H NMR agrees with the value of the calculated Mn, suggesting that the ROP of CL undergo a living manner.关键词
开环聚合/ε-己内酯/钇配合物Key words
Ring-opening polymerization/ e-Caprolactone/ Yttrium complex分类
化学化工引用本文复制引用
梁振华,倪旭峰,沈之荃..原位生成三苄氧基钇催化ε-己内酯可控开环聚合[J].高等学校化学学报,2011,32(8):1881-1883,3.基金项目
国家自然科学基金(批准号:20874083,20774078)和教育部留学回国人员科研启动基金资助. （批准号:20874083,20774078）
