摘要
聚己内酯（ＰＣＬ）是一种可生物降解的高分子材料，有良好的相溶性，可用于药物的缓释放．近年来，用稀土化合物作为单组分催化剂催化己内酯开环聚合的研究，已成为人们关注的热点．杜邦公司的ＭｃＬａｉｎ等［１，２］最早发现了单组分烷氧基稀土化合物可以在室温下催化...
The catalytic activities of lanthanocene amides in ringopening polymerization of caprolactone have been investigated. Both the central metals and the ligands in amides showed effects on the catalytic activity. For the central metal, the activity increased with increase of ionic radii of the metal elements; for the amido groups, NC5H10 showed greater effect than N(iPr)2; for substituted cyclopentadienyl ligands, effect of tBuC5H4 was greater than that of MeC5H4. The mechanism of the ringopening polymerization has been briefly discussed.
出处
《应用化学》
CAS
CSCD
北大核心
1999年第2期102-104,共3页
Chinese Journal of Applied Chemistry
基金
国家自然科学基金
江苏省有机合成重点实验室资助
