期刊
POLYMER CHEMISTRY
卷 4, 期 2, 页码 360-367出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c2py20590d
关键词
-
资金
- CNRS
- ENSCP
- ANR [ANR-10-PDOC-010-01]
- Fondation Pierre-Gilles de Gennes
- French Ministry of Research and Higher Education
- UPS
- Chinese Scholarship Council (CSC)
- Scholarship Council of Lanzhou University
- TGE RMN THC [Fr3050]
Synthesis of aliphatic polyesters has been studied intensively due to their biocompatible and biodegradable properties and their applications in medical and agricultural fields. Among them, polyhydroxybutyrate (PHB), which is a naturally occurring polymer, is synthesized by a variety of bacteria and algae. However, this polymer has poor mechanical properties due to its brittleness. Herein is presented a practical route to a highly syndiotactic PHB by way of a one-pot reaction. We report the results of a comprehensive investigation of the newly discovered stereoselective and controlled polymerization of racemic beta-butyrolactone (rac-BBL) using an initiator prepared in situ from yttrium(III) isopropoxide Y((OPr)-Pr-i)(3), and a bisphenoxide ligand. DFT studies on the alkoxide catalyst reveal that the R and S monomers are almost equivalent for the first ring-opening reaction. The selectivity of the next insertion was scrutinized, demonstrating that the polymerization process is predicted to be stationary (back-side insertion).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据