One-pot terpolymerization of CHO, CO2 and l-lactide using chloride indium catalysts

被引:9
|
作者
de Sarasa Buchaca, Marc Martinez [1 ,2 ]
de la Cruz-Martinez, Felipe [1 ,2 ]
Sanchez-Barba, Luis F. F. [4 ]
Tejeda, Juan [1 ,2 ]
Rodriguez, Ana M. M. [1 ,2 ]
Castro-Osma, Jose A. [3 ]
Lara-Sanchez, Agustin [1 ,2 ]
机构
[1] Univ Castilla La Mancha, Fac Ciencias & Tecnol Quim, Ctr Innovac Quim Avanzada ORFEO CINQA, Dept Quim Inorgan Organ & Bioquim, Ciudad Real 13071, Spain
[2] Inst Reg Invest Cient Aplicada, Ciudad Real 13071, Spain
[3] Univ Castilla La Mancha, Fac Farm, Dept Quim Inorgan Organ & Bioquim, Albacete 02071, Spain
[4] Univ Rey Juan Carlos, Dept Biol & Geol Fis & Quim Inorgan, Madrid 28933, Spain
关键词
RING-OPENING POLYMERIZATION; CARBON-DIOXIDE; ALTERNATING COPOLYMERIZATION; CYCLOHEXENE OXIDE; CO2/EPOXIDE COPOLYMERIZATION; SWITCHABLE CATALYSIS; TRIBLOCK COPOLYMERS; BETA-BUTYROLACTONE; POLY(LACTIC ACID); DINUCLEAR NICKEL;
D O I
10.1039/d3dt00391d
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Ring-opening copolymerization reactions of epoxides, carbon dioxide and cyclic esters to produce copolymers is a promising strategy to prepare CO2-based polymeric materials. In this contribution, bimetallic chloride indium complexes have been developed as catalysts for the copolymerization processes of cyclohexene oxide, carbon dioxide and l-lactide under mild reaction conditions. The catalysts displayed good catalytic activity and excellent selectivity towards the preparation of poly(cyclohexene carbonate) (PCHC) at one bar CO2 pressure in the absence of a co-catalyst. Additionally, polyester-polycarbonate copolymers poly(lactide-co-cyclohexene carbonate) (PLA-co-PCHC) were obtained via an one-pot one-step route without the use of a co-catalyst. The degree of incorporation of carbon dioxide can be easily modulated by changing the CO2 pressure and the monomer feed, resulting in copolymers with different thermal properties.
引用
收藏
页码:3482 / 3492
页数:11
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