摘要
研究了己内酯开环聚合中聚合时间、聚合温度、及以乙二醇 -钛酸丁酯作为引发剂的用量对聚合物的影响 ,得出了己内酯开环的较佳反应条件 (反应温度为 140℃ ,反应时间为 7h)并拟合出在该反应条件下聚合产物的分子量与乙二醇的关系式 M=15 0 .4 6( Vρ/m) -0 .5315。聚己内酯结构用红外、核磁共振和
The synthesis of biodegradable material-polycaprolactone was studied. The influences of reactive time, reactive temperature and the initiator(ethylene glycol) to the reaction of ring-opening polymerization of caprolactone were discussed. The best reactive conditions(140 ℃, 7 h) were obtained. The molecular weight of polycaprolactone is controlled by the concentration of ethylene glycol as the formula is M= 150.46(V ρ/m) -0.5315. Moreover, the molecular structure of polycaprolactone was characterized by infrared spectroscopy, H-nuclear magnetic resonance spectroscopy and X-ray photoelectron spectroscopy.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2002年第6期48-50,54,共4页
Polymer Materials Science & Engineering
