Kinetics of Radical Polymerization. LII. Kinetic Investigation of Styrene Polymerization in Viscous Medium
| Autor: | Gy. Fenyvesi, Ferenc Tüdös, T. Földes-Berezsnich, A. Nagy |
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| Rok vydání: | 1990 |
| Předmět: |
Kinetic chain length
Chain propagation Polymers and Plastics Bulk polymerization Radical polymerization General Engineering Thermodynamics Solution polymerization General Chemistry Photochemistry chemistry.chemical_compound Monomer Reaction rate constant Polymerization chemistry Materials Chemistry Ceramics and Composites |
| Zdroj: | Journal of Macromolecular Science: Part A - Chemistry. 27:637-647 |
| ISSN: | 0022-233X |
| DOI: | 10.1080/00222339009349648 |
| Popis: | This paper deals with the homopolymerization of the systems styrene-azobisisobutyronitrile-dibutyl phthalate-50°C and styrene-benzoin-dibutyl phthalate-50°C. The dependencies of initiation and overall rates of the polymerization on the concentrations of monomer and the viscous solvent were studied. The absolute rate constants for chain propagation and termination were determined. The termination rate constant of the styrene-dibutyl phthalate system was found to be inversely proportional to the viscosity of the medium. The propagation rate constant was found to decrease with monomer concentration, which could be evaluated quantitatively in terms of the hot radical theory. |
| Databáze: | OpenAIRE |
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