Dynamic and Isothermal Thermogravimetric Degradation of Poly(vinyl Chloride)/Chlorinated Poly(ethylene) Blends |
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Authors: | N Stipanelov Vrande?i? I Klari? U Roje |
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Affiliation: | (1) Department of Organic Chemical Technology, Faculty of Chemical Technology, University of Split, Teslina 10/V, 21000 Split, Croatia |
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Abstract: | The thermal degradation of poly(vinyl chloride)/chlorinated poly(ethylene) (PVC/CPE) blends of different compositions was
investigated by means of dynamic and isothermal thermogravimetric analysis in flowing atmosphere of nitrogen. Kinetic parameters
(the apparent activation energy E, and pre-exponential factor Z) were calculated after Flynn-Wall-Ozawa method for the first stage of dynamic degradation of PVC/CPE blends, and after Flynn
method for the isothermal degradation. In both cases, there is the compensation dependence between the values E and logZ. The values of compensation ratios as well as the characteristics of TG and DTG curves, confirm the stabilizing effect of
CPE on PVC dehydrochlorination.
This revised version was published online in July 2006 with corrections to the Cover Date. |
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Keywords: | dynamic and isothermal thermogravimetric analysis kinetic parameters PVC/CPE blends thermal degradation |
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