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The influence of monomer purity and crystal defects on the radiation-induced solid-state polymerization of maleimides

✍ Scribed by V.S. Ivanov; L.A. Petrukhno; L.F. Musienko

Publisher: Elsevier Science
Year: 1970
Tongue: English
Weight: 375 KB
Volume: 6
Category: Article
ISSN: 0014-3057
DOI: 10.1016/0014-3057(70)90122-9

No coin nor oath required. For personal study only.

✦ Synopsis

AbstraetmRadiation-induced polymerization of N-phenylmaleimide (N-FMI) of various degrees of purity has been studied. The degree of monomer conversion increases with increase of purity for processes in the liquid phase. The situation is more complicated for the solid-phase where degree of purity and also defects in the solid are important.

The influence of defects in the monomer crystals has been studied for polymerization of binary systems with various non-polymerizable additives: N-FMI-fluorene (F), N-FMI-diphenyl (DF), maleimide (MI)-F. The various additives have different effects on solid-state polymerization. In the case of N-FMI, addition of a non-isomorphous additive caused marked sensitization. In the case of MI, there is inhibition.

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