Indexed by:
期刊论文
First Author:
Wu, Guang-Peng
Correspondence Author:
Lu, XB (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China.
Co-author:
Wei, Sheng-Hsuan,Lu, Xiao-Bing,Ren, Wei-Min,Darensbourg, Donald J.
Date of Publication:
2010-11-09
Journal:
MACROMOLECULES
Included Journals:
SCIE、EI、Scopus
Document Type:
J
Volume:
43
Issue:
21
Page Number:
9202-9204
ISSN No.:
0024-9297
Abstract:
A study was conducted to demonstrate highly selective synthesis of CO2copolymer from styrene oxide. The study explored the selective routes for the preparation of poly-(styrene carbonate) using cobalt(III) complexes containing Schiff base ligands as catalysts. The resulting polymer exhibited excellent thermal stability with a thermolysis temperature up to 300 °C, which was about 60 °C higher than that of the copolymer obtained with zinc glutarate as catalyst. The main-chain sequence of the resulting polycarbonate was confirmed by1H and13C NMR spectroscopy, along with MALDI-TOF. The resonance of methine CH in styrene carbonate unit was found at 5.87 ppm due to the electron-withdrawing effect of the aromatic ring in1H NMR spectrum of the resulting copolymer in CDCl3. MALDI-TOF spectroscopy also confirmed the highly alternating nature of the resulting polymer, while the13C NMR spectrum suggested that the copolymer had a head-to-tail content of 51%.
Translation or Not:
no
