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Effect of aluminum chloride and Pt/ TiO 2 on the thermal degradation of poly(vinyl chloride) in solution
Author(s) -
Gupte Sachin L.,
Agarwal Nitin,
Madras Giridhar,
Nagaveni K.,
Hegde M.S.
Publication year - 2003
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.13074
Subject(s) - vinyl chloride , degradation (telecommunications) , materials science , chloride , activation energy , polymer , gel permeation chromatography , aluminium , catalysis , chemical engineering , polymer chemistry , nuclear chemistry , composite material , chemistry , copolymer , organic chemistry , metallurgy , telecommunications , computer science , engineering
The effect of two catalysts, Pt/TiO 2 and aluminum chloride, on the degradation of poly (vinyl chloride) (PVC) in solution was investigated at various temperatures. The molecular weight distribution of the polymer was obtained by analyzing the samples by gel permeation chromatography. Experimental data indicated that the catalysts enhanced the degradation rate of PVC compared to the thermal degradation of PVC. Continuous distribution kinetic models were used to evaluate the degradation rate coefficients. The activation energy, calculated from the temperature dependence of rate coefficients, was 26.5, 31.5, and 43.7 kcal/mol for the thermal degradation of PVC in solution, in the presence of Pt/TiO 2 and in the presence of AlCl 3 , respectively. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3532–3535, 2003