Effect of the chemical natures of a monomer and a leaving group in symmetric trithiocarbonate as a reversible addition-fragmentation chain-transfer agent on the position of the trithiocarbonate group in macromolecules

The mechanism controlling the formation of polymer chains during the polymerization of vinyl monomers-namely, styrene, 4-vinylpyridine, n -butyl acrylates, and tert -butyl acrylate—mediated by symmetric trithiocarbonates (R-S-C(=S)-S-R) with different leaving groups R is studied. It is shown that th...

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Bibliographic Details
Published in:Polymer science. Series B 2013-09, Vol.55 (9-10), p.515-525
Main Authors: Vishnevetskii, D. V., Chernikova, E. V., Garina, E. S., Sivtsov, E. V.
Format: Article
Language:English
Subjects:
Asymmetry
Chemistry
Chemistry and Materials Science
Polymer Sciences
Polymerization
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Summary:The mechanism controlling the formation of polymer chains during the polymerization of vinyl monomers-namely, styrene, 4-vinylpyridine, n -butyl acrylates, and tert -butyl acrylate—mediated by symmetric trithiocarbonates (R-S-C(=S)-S-R) with different leaving groups R is studied. It is shown that the position of the trithiocarbonate fragment in a macromolecule depends on the nature of both the monomer and substituent R in trithiocarbonate. Variations in the structure of the leaving group in the initial reversible addition-fragmentation chain-transfer agent and the synthesis conditions makes it possible to direct polymerization to form a structure (symmetric, end, or asymmetric) relative to the trithiocarbonate group.
ISSN:1560-0904
1555-6123
DOI:10.1134/S156009041308006X