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

DOI

10.2991/bst-17.2018.27How to use a DOI?

Keywords

Schiff-base, Titanium, Polylactic acid, Ring-opening polymerization, Biomaterial

Abstract

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) , =110.209(3) ø, V=6801(3) 3). 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.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiang Li
AU  - Bao-Jun Yang
AU  - Pei Wu
AU  - Guo-Ming Zeng
PY  - 2018/02
DA  - 2018/02
TI  - New Titanium Complex bearing O, N, N, O-tetradentate Ligands: Synthesis, Characterization and Catalysis on the Ring-opening Polymerization of D, L-lactide
BT  - Proceedings of the 2017 2nd International Conference on Biological Sciences and Technology (BST 2017)
PB  - Atlantis Press
SP  - 182
EP  - 189
SN  - 2468-5747
UR  - https://doi.org/10.2991/bst-17.2018.27
DO  - 10.2991/bst-17.2018.27
ID  - Li2018/02
ER  -