摘要
采用熔融缩聚法直接合成聚乳酸,探索了催化剂用量、单体浓度、反应温度及反应时间对聚乳酸分子量的影响。结果表明:选用质量分数为1.0%的辛酸亚锡作为催化剂,聚合温度控制在160℃,0.09MPa反应10h,可得到粘均分子量为9.68×103的聚乳酸。
Direct synthesis of polylactic acid through melt polycondensation, and the influence of catalysts, monomer concentration, reaction temperature and reaction time on molecular weight of polylactic acid were studied. The results were as follows: with 1.0% catalyst Sn(Oct)2 at 160℃ ,0. 09MPa for 10h, polylactic acid (Mη = 9.68 × 10^3 )was obtained.
出处
《化工新型材料》
CAS
CSCD
北大核心
2009年第9期106-108,共3页
New Chemical Materials
基金
陕西省自然科学基金项目(2004B13)资助项目
咸阳师范学院专项科研基金项目(06XSYK105)资助项目
关键词
聚乳酸
熔融缩聚
合成
polylactic acid, melt polycondensation, synthesis