On the initial stage of the free-radical polymerizations of styrene and methyl methacrylate in the presence of fullerene C60
| Autor: | S. V. Kolesov, R. Kh. Yumagulova, V. A. Kraikin, S. I. Kuznetsov, A. K. Frizen, D. R. Diniakhmetova |
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| Rok vydání: | 2016 |
| Předmět: |
Chain propagation
010405 organic chemistry Induction period Radical Radical polymerization General Chemistry 010402 general chemistry Photochemistry 01 natural sciences Catalysis 0104 chemical sciences Computer Science Applications Styrene chemistry.chemical_compound Monomer chemistry Polymerization Modeling and Simulation Polymer chemistry Methyl methacrylate |
| Zdroj: | Kinetics and Catalysis. 57:380-387 |
| ISSN: | 1608-3210 0023-1584 |
| DOI: | 10.1134/s0023158416030150 |
| Popis: | It has been demonstrated experimentally and theoretically that the essentially different inhibiting effects of fullerene C60 on the initial stage of the polymerizations of styrene and methyl methacrylate (including complete hampering of styrene polymerization throughout a long induction period) are of common kinetic nature. The difference arises from the competition between C60 and the monomer not for initiating radicals but for radicals originating from the monomer; that is, the difference stems from the competition between the chain propagation reactions and the termination reactions on fullerene molecules. As a consequence, the further development of the process is determined by the relative reactivities of the radicals toward C60 and towards their parent monomers. |
| Databáze: | OpenAIRE |
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