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Structural Effects on the Decomposition Kinetics of EPDM Elastomers by High-Resolution TGA and Modulated TGA

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Abstract

Effects of ethylene content and maleated EPDM content on the thermal stability and degradation kinetics of ethylene propylene diene monomer (EPDM) have been studied using high resolution thermogravimetric analysis (Hi-Res TGA) and Modulated TGA (MTGA). Modulated TGA shows that EPDM degradation is complex, with activation energy of degradation increasing throughout the degradation. Values from both dynamic and constant heating rate experiments are in good agreement with each other and with the literature value. However, the dynamic heating rate experiment shows that if the difference of peak temperature of components in a system is less than 5°C, Hi-Res TGA does not resolve them.

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Authors and Affiliations

  1. Polymer Science Group, Ian Wark Research Institute, University of South Australia, Mawson Lakes, SA, 5095, Australia

    C. Gamlin, M. G. Markovic, N. K. Dutta, N. R. Choudhury & J. G. Matisons

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  1. C. Gamlin
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  2. M. G. Markovic
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  3. N. K. Dutta
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  4. N. R. Choudhury
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  5. J. G. Matisons
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Correspondence to J. G. Matisons.

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Gamlin, C., Markovic, M.G., Dutta, N.K. et al. Structural Effects on the Decomposition Kinetics of EPDM Elastomers by High-Resolution TGA and Modulated TGA. Journal of Thermal Analysis and Calorimetry 59, 319–336 (2000). https://doi.org/10.1023/A:1010164702571

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  • DOI: https://doi.org/10.1023/A:1010164702571

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