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Triethylborane and methyl vinyl ketone as a bicom‐ponent transfer agent for the polymerisation of styrene
Author(s) -
Béraud Valérie,
Businelli Laurent,
Gnanou Yves,
Maillard Bernard
Publication year - 2000
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/1521-3927(20000801)21:13<901::aid-marc901>3.0.co;2-8
Subject(s) - triethylborane , methyl vinyl ketone , styrene , transfer agent , ketone , polymer chemistry , radical , polymerization , polymer , chemistry , vinyl polymer , materials science , photochemistry , organic chemistry , copolymer , catalysis
The polymerisation of styrene in the presence of methyl vinyl ketone (MVK) and triethylborane (BEt 3 )was studied. The mixture of these two compounds was found to form a bicomponent complex that functions as a transfer agent for growing polystyryl radicals ( C T = 0.7; benzene, 60 °C). The analysis of the polymer chains formed by MALDI‐TOF‐MS showed that they were fitted with CH 2 —CH 3 and CH 2 —CH 2 —C(O)—CH 3 as end groups which obviously emanated from MVK and BEt 3 . In contrast, no such transfer occurred on using each of them as single compound.