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- W2042472841 abstract "The kinetic parameters of the first stage of polystyrene degradation have been investigated to elucidate the reaction mechanisms using the flow reactor system. The decrease in molecular weight of polystyrene was recorded at minute intervals over the temperature range 310°–390°C. Generally, the first and second stages were observed by thermogravimetric analysis (t.g.a.), however in the early stage of the degradation volatile yields of at least 5% occurred. Therefore, using t.g.a. analysis it is difficult to detect this earlier stage. It became evident that the first stage in the earlier part of the reaction could be detected by g.p.c. analysis. We have observed the hidden kinetic parameters of the nature of the first stage of the polystyrene degradation. The results indicate that the main chains were degraded randomly with the small quantitative volatile groups in the first stage and the rates of decrease in molecular weight in the first stage against reaction temperatures were evaluated as log ks = 12.0 − 41300/RT." @default.
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- W2042472841 date "1982-07-01" @default.
- W2042472841 modified "2023-10-18" @default.
- W2042472841 title "Kinetic study on the first stage during thermal degradation of polystyrene" @default.
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- W2042472841 doi "https://doi.org/10.1016/0032-3861(82)90413-x" @default.
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