NDLI: Organo-catalyzed synthesis of aliphatic polycarbonates in solvent-free conditions

Content Provider	Royal Society of Chemistry (RSC)
Author	Refes, Karima Brachais, Claire-Hélène Naik, Prashant U. Sadaka, Faten Plasseraud, Laurent Boni, Gilles Couvercelle, Jean-Pierre Picquet, Michel
Copyright Year	2012
Abstract	A new efficient and expeditious route to the synthesis of aliphatic polycarbonates, in solvent-free conditions and using 1-n-butyl-3-methylimidazolium-2-carboxylate (BMIM-2-CO2) as a catalyst precursor, is described. The protocol consists of a two-step polymerization process involving the transesterification of dimethyl carbonate (DMC) with linear alkane diols and leading to high molecular weight homopolymers. The reaction went to completion quantitatively with the liberation of methanol as the only by-product. The in situ formation of N-heterocyclic carbene species resulting from BMIM-2-CO2 decarboxylation is suggested to be a key feature of the condensation process. The protocol was then applied to the copolymerization of diverse diols leading to the synthesis of polycarbonates with average segment lengths and random sequences.
Starting Page	1475
Ending Page	1480
Page Count	6
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	3
Issue Number	6
Journal	Polymer Chemistry
DOI	10.1039/c2py20056b
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Persistent carbene Dimethyl carbonate Aliphatic compound Decarboxylation Polymerization Transesterification Methanol
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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