• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Biological Sciences and Technology >New Titanium Complex bearing O, N, N, O-tetradentate Ligands: Synthesis, Characterization and Catalysis on the Ring-opening Polymerization of D, L-lactide
【24h】

New Titanium Complex bearing O, N, N, O-tetradentate Ligands: Synthesis, Characterization and Catalysis on the Ring-opening Polymerization of D, L-lactide

机译：新的钛配合物轴承O，N，N，O-四晶体配体：D，L-丙交酯的开环聚合的合成，表征和催化

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Poly (lactic acid) has become a hot topic in biomedical field due to good biocompatibility and biodegradability. As an important method for synthesis of poly lactic acid materials, ring-opening polymerization of lactide catalyzed by metal complexes can achieve the controllable polymerization of lactide by selecting appropriate ligand and metal. The metal complex of (LTi-O)_2 (L=3, 5-Di-tert-butylsalicylaldehyde-ethylenediamine) has been synthesized and characterized via element analysis and ~1H NMR spectroscopy. Furthermore, X-ray single crystal diffraction analysis has been used to determine the molecule structure of the complex (C2/c, Z=4, a=25.495(8), b=16.189(4), c=17.559(5) A, β=110.209(3)°, V=6801(3) A3). The catalytic experimental results show that this Schiff-base complex has relatively high catalytic activity and controllability of molecular weights (PDI=1.09-1.24) in catalyzing ring-opening polymerization of D, L-lactide.
机译：由于良好的生物相容性和生物降解性，聚（乳酸）已成为生物医学领域的热门话题。作为合成聚乳酸材料的重要方法，通过选择合适的配体和金属，金属配合物催化的丙交酯的开环聚合可以实现丙交酯的可控聚合。已经合成（LTI-O）_2（L = 3,5-二叔丁二胺）的金属络合物，通过元素分析和〜1H NMR光谱进行了合成和表征。此外，已经采用X射线单晶衍射分析来确定复合物的分子结构（C2 / C，Z = 4，A = 25.495（8），B = 16.189（4），C = 17.559（5）a ，β= 110.209（3）°，V = 6801（3）A3）。催化实验结果表明，该席夫碱基络合物具有相对高的催化活性和分子量的可控性（PDI = 1.09-1.24），催化D，L-丙交酯的开环聚合。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号