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Kinetics of Free Radical Copolymerization. V. Copolymerization of Ethyl Acrylate with Styrene. Composition of Copolymers |
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| Authors: | A. Feherværi T. Foldes-berezsnich F. Tüdöss |
| Affiliation: | 1. Central Research Institute for Chemistry of the Hungarian Academy of Sciences , H-1525, Budapest, Hungary;2. Department of Chemical Technology , E?tv?s Lorand University , H-1088, Budapest, Hungary , Central Research Institute for Chemistry of the Hungarian Academy of Sciences H-1525 Budapest, Hungary |
| Abstract: | The composition of copolymers formed at 50°C in ethyl acrylate/ styrene/azo-bis-isobutyronitrile/benzene systems of different composition was investigated. The experimental composition data (based on the elementary analysis of copolymers) were evaluated by the η-ζ transformation method. Finite monomer conversions were taken into account. The classical composition equation was found to describe the system under investigation. The reactivity ratios are p 1 = 0.152 ± 0.006; p 2 = 0.787 ± 0.023. The free radical copolymerization of ethyl acrylate and styrene has been investigated in benzene solution at 50°C. Our results on the initiation kinetics were disclosed in our recent publication [1]. Now we are reporting on our studies concerning the composition of ethyl acrylate/styrene copolymers. |
| Keywords: | controlled/living radical polymerization nitroxide mediated radical polymerization polystyrene TEMPO |