| 高纯度、高收率L-丙交酯的制备 |
| |
| 引用本文： | 张海坡,阮建明,周忠诚,李亚军.高纯度、高收率L-丙交酯的制备[J].粉末冶金材料科学与工程,2004,9(3):259-264. |
| |
| 作者姓名： | 张海坡 阮建明 周忠诚 李亚军 |
| |
| 作者单位： | 中南大学,粉末冶金国家重点实验室,湖南,长沙,410083 |
| |
| 摘 要： | 以L-乳酸为单体,在催化剂作用下用乳酸先缩聚再解聚制备L-丙爻酯(LLA),讨论了温度、压强对制备丙交酯的影响。采用水洗加重结晶的方法制得高纯度的LLA,LLA的收率达到40.6％。用旋光度、红外光谱、色谱质谱对所制得的LLA进行了检测,结果表明,提纯后LLA的纯度较高。
|
| 关 键 词： | L-丙交酯 聚乳酸 纯化 聚合 |
| 修稿时间： | 2004年4月9日 |
Preparation of high purity and yield L-lactide |
| |
| ZHANG Hai-po,RUAN Jian-ming,ZHOU Zhong-cheng,LI Ya-jun.Preparation of high purity and yield L-lactide[J].materials science and engineering of powder metallurgy,2004,9(3):259-264. |
| |
| Authors: | ZHANG Hai-po RUAN Jian-ming ZHOU Zhong-cheng LI Ya-jun |
| |
| Abstract: | L-lactide was prepared from L-lactic acid using the stannous octoate as the catalyst. The effects of temperature and pressure on preparation of lactide were discussed in this paper. The high purity lactide can be obtained by washing with water and recrystallizing. The yield of the lactide reaches 40. 6%. The results of polarimeter, IR, chromatogram and mass spectrum show that the prepared L-lactide is pure. |
| |
| Keywords: | LLA PLLA purity synthesis |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
