Block Copolymers based on 2-Vinyl-4,4-dimethyl-5-oxazolone by RAFT polymerization: Experimental and computational studies - CNRS - Centre national de la recherche scientifique Accéder directement au contenu
Article Dans Une Revue Journal of Polymer Science Part A: Polymer Chemistry Année : 2010

Block Copolymers based on 2-Vinyl-4,4-dimethyl-5-oxazolone by RAFT polymerization: Experimental and computational studies

Résumé

The ability of 2-vinyl-4,4-dimethyl-5-oxazolone (VDM), a highly reactive functional monomer, to produce block copolymers by reversible addition fragmentation chain transfer (RAFT) sequential polymerization with methyl acrylate (MA), styrene (S), and methyl methacrylate (MMA) was investigated using cumyl dithiobenzoate (CDB) and 2-cyanoisopropyl dithiobenzoate (CPDB) as chain transfer agents. The results show that PS-b-PVDM and PMA-b-PVDM well-defined block copolymers can be prepared either by polymerization of VDM from PS- and PMA-macroCTAs, respectively, or polymerization of S and MA from a PVDM-macroCTA. In contrast, PMMA-b-PVDM block copolymers with controlled molecular weight and low polydispersity can only be obtained by using PMMA as the macroCTA. Ab initio calculations confirm the experimental studies.

Dates et versions

hal-00532807 , version 1 (04-11-2010)

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Citer

Sagrario Pascual, Thomas Blin, Prakash J. Saikia, Michel Thomas, Pascal Gosselin, et al.. Block Copolymers based on 2-Vinyl-4,4-dimethyl-5-oxazolone by RAFT polymerization: Experimental and computational studies. Journal of Polymer Science Part A: Polymer Chemistry, 2010, 48 (22), pp.5053-5062. ⟨10.1002/pola.24303⟩. ⟨hal-00532807⟩
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