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Absence of Diffusion Control of Reaction Rate in the Thermal Decomposition of Amorphous Polymers

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Abstract

ONE of the difficulties in the determination of decomposition kinetics of solids by dynamic thermogravimetry is the recognized dependence of the results on procedural variables, particularly sample size and rate of heating1,2. It is often postulated that slow diffusion of products from the reaction sites is a rate-controlling factor.

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References

  1. Newkirk, A. E., Anal. Chem., 32, 1558 (1960).

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  2. Duval, C., Inorganic Thermogravimetric Analysis, second ed. (Elsevier, 1963).

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  3. Smith, D. A., Anal. Chem., 35, 1306 (1963).

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  4. Smith, D. A., Trans. Inst. Rubber Indust., 39, T275 (1963).

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SMITH, D. Absence of Diffusion Control of Reaction Rate in the Thermal Decomposition of Amorphous Polymers. Nature 208, 1200–1201 (1965). https://doi.org/10.1038/2081200b0

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