Effect Of Some Organic Compounds And Metal Compounds On The Thermal Stability And Degradation Of Polyvinyl Chloride

Author(s): Abbas Mehrdad, Mohammad Taghi Taghizadeh

In this study, we examined the effect of p-chlorophenol, acetyl acetone, vanadium pentoxide and vanadium (IV) oxide acetyl acetonate on the thermal stability and degradation of polyvinyl chloride at 165, 170, 175, 180 and 185ºC in inert atmosphere. The result reveals that the higher stabilizing efficiency was obtained for p-chlorophenol and acetylacetone, respectively. The vanadium oxide was indicated a little stabilizing efficiency and vanadium (IV) oxide acetyl acetonate was accelerated the degradation of polyvinyl chloride. The activation energies of the degradation of the PVC in the presence of p-chlorophenol, acetylacetone, vanadium oxide and none stabilizer were obtained 116.6, 112.5, 106.9 and 100.2 kj mol-1, respectively.

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