Kinetics of the thermal oxidation of poly(4-methyl-1-pentene) from volatile products using thermogravimetric analysis

Stivala, Salvatore; Gabbay, S.M.

doi:10.1016/0032-3861(77)90185-9

Cited by 5 publications

(3 citation statements)

References 2 publications

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“…There are only a few studies on the isothermal degradation of poly(4‐methyl‐1‐pentene) (PMP) 2–4. Thermal degradation products and decomposition mechanisms have been revealed.…”

Section: Introductionmentioning

confidence: 99%

High-resolution thermogravimetry of poly(4-methyl-1-pentene)

1999

J. Appl. Polym. Sci.

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Thermal degradation and kinetics of poly(4‐methyl‐1‐pentene) were investigated by nonisothermal high‐resolution thermogravimetry at a variable heating rate. Thermal degradation temperatures are higher, but the maximum degradation rates are lower in nitrogen than in air. The degradation process in nitrogen is quite different from that in air. The average activation energy and frequency factor of the first stage of thermal degradation for the poly(4‐methyl‐1‐pentene) are 2.4 and 2.8 times greater in air than those in nitrogen, respectively. Poly(4‐methyl‐1‐pentene) exhibits almost the same decomposition order of 2.0 and char yield of 14.3–14.5 wt % above 500°C in nitrogen and air. The isothermal lifetime was estimated based on the kinetic parameters of nonisothermal degradation and compared with the isothermal lifetime observed experimentally. © 1999 John Wiley & Sons, Inc. J Appl Polym Sci 71: 2201–2207, 1999

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“…There are only a few studies on the isothermal degradation of poly(4‐methyl‐1‐pentene) (PMP) 2–4. Thermal degradation products and decomposition mechanisms have been revealed.…”

Section: Introductionmentioning

confidence: 99%

High-resolution thermogravimetry of poly(4-methyl-1-pentene)

1999

J. Appl. Polym. Sci.

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“…In this paper, we provide another analysis of the data collected by Stivala and Gabbay [5]. The rate expression for volatile .products, d[VP]/dt, is assumed to have a first-order dependence on polymer concentration, but an n-order dependence on oxygen concentration.…”

Section: Kinetics Of Thermal Oxidative Degradationmentioning

confidence: 99%

“…Stivala and Gabbay used thermogravimetric analysis to conduct detailed studies of the thermal oxidation of atactic and isotactic PMP [5]. …”

Section: Kinetics Of Thermal Oxidative Degradationmentioning

confidence: 99%

The degradation of TPX components by oxygen, elevated temperature, and ionizing radiation

Farmer¹

1996

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Structure vs stability in polymer degradation

Stivala

Reich

1980

Polymer Engineering & Sci

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All materials are subject to aging, a process of long‐term degradation, but not at the same rate or affected in the same manner. The wide variation in susceptibility (or resistance) of polymers to various degradative agents, e.g., oxidative, thermal, mechanical, chemical, biological, depend on their chemical composition and structure. Accordingly, the chemical, physical, and energy considerations inherent in the pure polymer are discussed in relation to degradative stability.

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Kinetics of the thermal oxidation of poly(4-methyl-1-pentene) from volatile products using thermogravimetric analysis

Cited by 5 publications

References 2 publications

High-resolution thermogravimetry of poly(4-methyl-1-pentene)

High-resolution thermogravimetry of poly(4-methyl-1-pentene)

The degradation of TPX components by oxygen, elevated temperature, and ionizing radiation

Structure vs stability in polymer degradation

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