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Kinetics of radical polymerization LVII. Investigation of the effect of molecule inhibitors on the radical polymerization of p-methyl styrene (pMS). Aromatic nitro compounds

✍ Scribed by I Gyöngyhalmi; T Földes-Berezsnich; F Tüdös

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
409 KB
Volume
31
Category
Article
ISSN
0014-3057

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✦ Synopsis

The effect of aromatic nitro compounds (s-trinitrobenzene, o-and p-dinitrobenzene) was studied on the polymerization of p-methyl styrene by dilatometric method, using AIBN initiator at 50°C. The value of the stoichiometric coefficient 01) and of the relative reactivity (kJ&) was determined. In bulk polymerization, s-TNB exerted a medium strong and p-DNB a weak inhibiting effect, while o-DNB was a typical retarder.

For p-DNB, the value of p was determined in an inert solvent (benzene) at various concentrations, a systematic increase of p was found with the dilution, i.e. with the decrease of the monomer mole fraction. The change can quantitatively be described in terms of the hot radical theory.

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