Synthesis of Poly(vinyl acetate)‐ block ‐poly(dimethylsiloxane)‐ block ‐poly(vinyl acetate) Copolymers by Iodine Transfer Photopolymerization in Miniemulsion | Zendy

Tonnar Jeff | Zendy; Pouget Emmanuel | Zendy; LacroixDesmazes Patrick | Zendy; Boutevin Bernard | Zendy

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Synthesis of Poly(vinyl acetate)‐ block ‐poly(dimethylsiloxane)‐ block ‐poly(vinyl acetate) Copolymers by Iodine Transfer Photopolymerization in Miniemulsion

Author(s) -

Tonnar Jeff,

Pouget Emmanuel,

LacroixDesmazes Patrick,

Boutevin Bernard

Publication year - 2009

Publication title -

macromolecular symposia

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.257

H-Index - 76

eISSN - 1521-3900

pISSN - 1022-1360

DOI - 10.1002/masy.200950703

Subject(s) - miniemulsion , copolymer , vinyl acetate , polymer chemistry , photopolymer , polymerization , materials science , catalytic chain transfer , radical polymerization , polymer , composite material

Summary: Iodine transfer polymerization of vinyl acetate in aqueous miniemulsion, initiated by UV radiation in the presence of an α , ω ‐diiodo‐poly(dimethylsiloxane) macrophotoiniferter has been performed. The formation of a triblock copolymer latex PVAc‐ b ‐PDMS‐ b ‐PVAc has been evidenced by 1 H‐NMR and size exclusion chromatography. The size of the PDMS and PVAc blocks were modulated thus opening the way to a wide range of copolymers with different properties. A detailed study of the reaction mechanism showed the importance of the aqueous dispersed medium to achieve a controlled polymerization.

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