A. N. Zelenetskii, L. O. Bunina, V. P. Volkov2, and E. S. Obolonkova
Enikolopov Institute of Synthetic Polymeric Materials, Russian Academy of Sciences,
Profsouyznaya ul. 70, Moscow, 117393 Russia
Received June 20, 2000;
Revised Manuscript Received June 28, 2000
Abstract—The effect of a mechanochemical modification of PP with maleic anhydride, maleic acid, and
sodium maleate on the character of the deformation and disintegration of PP particles was studied by scanning
electron microscopy. It was shown that the deformation and disintegration processes start from fine PP particles
to spread to bigger ones as the duration and intensity of mechanochemical modification of PP increase. In this
case, changes in the morphology and structure of PP particles are accompanied by an increase in the specific
surface area, especially, at the final stage. Grafting a comonomer onto the polymer occurs via their joint defor-
mation in all the particles present both at their surface and in the bulk.
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