|Author||Gupta, M. C. ♦ Viswanath, S. G.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION ♦ PVC ♦ THERMAL DEGRADATION ♦ CHEMICAL REACTION KINETICS ♦ OXIDES ♦ CATALYTIC EFFECTS ♦ DEHYDROGENATION|
|Abstract||Thermal degradation of poly(vinyl chloride) has been studied in the presence of metal oxides by a thermogravimetric method. It follows a two-step mechanism. In the first step chlorine free radical is formed as in the case of pure PVC, and in the second step chlorine free radical replaces oxygen from metal oxide to form metal chloride and oxygen free radical. Subsequently, the oxygen free radical abstracts hydrogen from PVC. Formation of metal chloride is the rate-controlling step. The metal chlorides formed during the thermal degradation either volatilize or decompose simultaneously to lower metallic chlorides depending on the boiling point or the volatilization temperature.|
|Learning Resource Type||Article|
|Publisher Place||United States|
|Journal||Industrial and Engineering Chemistry Research|
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