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Cyclic diperoxides as sources of radicals for the initiation of the radical polymerization of methyl methacrylate
Author(s) -
Lockley J. E.,
Ebdon J. R.,
Rimmer S.,
Tabner B. J.
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)21:12<841::aid-marc841>3.0.co;2-y
Subject(s) - polymerization , radical , polymer chemistry , methyl methacrylate , acetone , radical polymerization , solvent , ketone , chemistry , photochemistry , materials science , organic chemistry , polymer
Thermolysis of cyclic diperoxides gave radicals. When solution polymerization of MMA was initiated by acetone cyclic diperoxide transfer to solvent was the dominant feature of the initiation process. However, transfer in the bulk polymerization of MMA was not a significant feature. Initiation of polymerization of MMA in solution by dibenzyl ketone cyclic diperoxide occurred at lower temperatures, and also aromatic end groups, derived from initiation by benzyl radicals, could be detected by 1 H NMR.