Silica, alumina, silica-aluminas and zeolites were screened as catalysts for polystyrene degradation in the range 200-550°C. More than 80% of the products in the distillate from the catalytic reactions at T≥350°C comprised eleven main compounds, in contrast to thermal degradation which gave essentially styrene and dimer. This different product distribution, which was obtained by GC-MS analysis, gave helpful indications about the mechanism of degradation.
CATALYTIC DEGRADATION OF POLYMERS .3. DEGRADATION OF POLYSTYRENE / G. AUDISIO, F. BERTINI, P.L. BELTRAME, P. CARNITI. - In: POLYMER DEGRADATION AND STABILITY. - ISSN 0141-3910. - 29:2(1990), pp. 191-200. [10.1016/0141-3910(90)90030-B]
CATALYTIC DEGRADATION OF POLYMERS .3. DEGRADATION OF POLYSTYRENE
P. CarnitiUltimo
1990
Abstract
Silica, alumina, silica-aluminas and zeolites were screened as catalysts for polystyrene degradation in the range 200-550°C. More than 80% of the products in the distillate from the catalytic reactions at T≥350°C comprised eleven main compounds, in contrast to thermal degradation which gave essentially styrene and dimer. This different product distribution, which was obtained by GC-MS analysis, gave helpful indications about the mechanism of degradation.
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