Activation energy of thermal degradation

S.L. Madorsky, Rates and activation energies of thermal degradation of styrene and acrylate polymers in vacuum, J. Polym. Sci., 11, 491-506 (1953). 

Thermal decomposition of PVC is believed to be linked to the loss of plasticizers. Activation energy of thermal degradation is given by equation ... 

Studies on the thermal degradation of PE samples with different molecular masses in the isothermal regime at different temperatures have shown that the kinetic curves have linear plots up to 70% weight loss (Figure 1.2), which point to a zero-order reaction. The activation energy of thermal degradation increases with the molecular mass of the polymer from 192.3 kj/mol (molecular mass 11,000) up to 276.3 kj/mol (molecular mass 23,000) [2]. 

Activation energy of thermal degradation kJ mof 162 Herrera, M Matuschek, G Kettrup, A, Chemosphere, 42, 601-7, 2001. 

Activation energy of thermal degradation kJ mol" 477 (aPS) Chen, K Harris, K Vyazovkin, S, Macromol. Chem. Phys., 208, 2525-32, 2007. 

Tj/2 is the temperature at which 50% of the polymer is lost after thirty minutes heating in vacuum k35o is the rate of volatilization, i.e., weight loss, at 350°C is the activation energy of thermal degradation. 

Gupta M C, Deshmukh V G (1982a), Thermal oxidative degradation of poly-lactic acid, I. Activation energy of thermal degradation in air . Colloid Polym. Sci., 260, 308-311. 

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