NDLI: RAFT/MADIX (co)polymerization of vinyl trifluoroacetate: a means to many ends

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Polymer Chemistry Vol -4

Polymer Chemistry Vol -3

Polymer Chemistry Vol -2

Polymer Chemistry Vol -1

RAFT/MADIX (co)polymerization of vinyl trifluoroacetate: a means to many ends

Content Provider	Royal Society of Chemistry (RSC)
Author	Girard, Etienne Liu, Xuan Marty, Jean-Daniel Destarac, Mathias
Copyright Year	2014
Abstract	In this study, RAFT/MADIX (co)polymerization of vinyl trifluoroacetate (VTFAc) is presented and the specific properties of the resulting polymers are discussed. Xanthate-mediated polymerization of VTFAc exhibits the features of a reversible-deactivation radical polymerization. The xanthate is responsible for a decrease in the overall rate of polymerization compared to conventional radical polymerization. In spite of a limited kinetic chain length mainly attributed to chain transfer to solvent, number-average molar masses increase with monomer conversion and dispersities remain very low (1.07< Đ <1.23) for theoretical Mn lower than 1.5 × 104 g mol−1. The obtained polymers are semi-crystalline with high melting points. The statistical copolymerization of vinyl acetate with VTFAc yields controlled polyvinyl esters with tunable thermal properties and tacticity. Well-defined PVAc-PVOH diblock copolymers are readily produced by selective methanolysis of the VTFAc units of the starting PVAc-PVTFAc diblock copolymer. The added value of VTFAc in the design of polyvinyl esters with enhanced CO2-philicity is also explored through its copolymerization with vinyl pivalate. VTFAc is seen as a new multifaceted partner in the chemistry of controlled poly(vinyl esters) that can be used to finely tune polymer dispersity, tacticity, thermal properties, chemical stability and solubility in supercritical carbon dioxide.
Starting Page	1013
Ending Page	1022
Page Count	10
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	5
Issue Number	3
Journal	Polymer Chemistry
DOI	10.1039/c3py01109g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Tacticity Reversible-deactivation radical polymerization Molar mass Radical polymerization Polymerization VTFAc Polymer Transesterification Organic chemistry Chain transfer Supercritical carbon dioxide Xanthate Kinetic chain length Copolymer Monomer Solvent Vinyl acetate
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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RAFT/MADIX (co)polymerization of vinyl trifluoroacetate: a means to many ends

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