Indexed by:
期刊论文
First Author:
Xu, Yue-Chao
Correspondence Author:
Lu, XB (reprint author), Dalian Univ Technol, State Key Lab Fine Chem, 2 Linggong Rd, Dalian 116024, Peoples R China.
Co-author:
Zhou, Hui,Sun, Xing-Yu,Ren, Wei-Min,Lu, Xiao-Bing
Date of Publication:
2016-08-23
Journal:
MACROMOLECULES
Included Journals:
SCIE、EI、Scopus
Document Type:
J
Volume:
49
Issue:
16
Page Number:
5782-5787
ISSN No.:
0024-9297
Abstract:
The selective transformation of carbon dioxide into useful chemicals has attracted much attention in recent decades due to the economic and environmental benefits arising from the utilization of renewable source. Nevertheless, the reactions on incorporating CO2 into polymeric materials are very limited. The copolymerization of CO2 and alkynes to synthesize degradable polyesters is a thermodynamically unfavorable process, since the propagation step involving CO2 is a major obstacle. Herein, we report a strategy to conquer the thermodynamic and kinetic barriers for the copolymerization of CO2 and 2-butyne via alpha-methylene-beta-butyrolactone (M beta BL) intermediate. Subsequent ring-opening polymerization of the lactone intermediate mediated by achiral Salen aluminum complexes afforded syndiotacticenriched polyesters with controllable molecular weight and narrow polydispersity. Notably, the resultant syndiotactic-enriched poly(M beta BL) is a typical semicrystalline material. The present method provides access to a new class of CO2-based crystalline polymeric materials.
Translation or Not:
no
