engleski

Thermal degradation of poly(vinylchloride)/poly(α-methylstyrene-acrylonitrile)blends

The thermal degradation of immiscible blends of poly(vinyl chloride)/poly (alpha-methylstyrene-acrylonitrile)(PVC/PMSAN) has been studied by means of dynamic thermogravimetry, in a nitrogen atmosphere. PMSAN accelerates the degradation of PVC while PVC retards the degradation process of PMSAN. The stability of the blends depends upon its composition. Blends containing 5 and 10% PMSAN are least stable. With increasing amounts of PMSAN in the blend the thermal stability graduallyincreases, so that the blends with more than 50%of PMSAN are more stable than PVC.

PVC blends ; thermal degradation ; thermogravimetry

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