Kinetics of thermal degradation of poly(vinyl chloride)

Krongauz, Vadim V.; Lee, Yann-Per; Bourassa, Anthony

doi:10.1007/s10973-011-1703-6

Cited by 53 publications

(64 citation statements)

References 64 publications

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“…The study was done for very low heating rates b = 0. The influence of measurement conditions on obtained values of kinetic parameters was also observed for another compound [21][22][23][24][25]. Authors of publication [21] observed constant activation energy (isothermal condition) of decomposition process for poly(vinyl chloride) (PVC).…”

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confidence: 96%

“…The influence of measurement conditions on obtained values of kinetic parameters was also observed for another compound [21][22][23][24][25]. Authors of publication [21] observed constant activation energy (isothermal condition) of decomposition process for poly(vinyl chloride) (PVC). The dependence of apparent activation energy on conversion of PVC was obtained for non-isothermal condition [22,23].…”

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confidence: 96%

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Thermal properties of TEX decomposition or sublimation

Gańczyk

Zygmunt

Gołofit

2016

J Therm Anal Calorim

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TEX is a thermostable compound and less sensitive to external stimuli. It sublimates and decomposes at high temperature. The influence of DSC and TG measurement conditions and substance mass on the thermal decomposition of TEX was determined. It was observed that substance mass, pan type and fulfillment degree of pan influence the thermal decomposition and kinetic parameters of TEX decomposition. Sublimation of the sample was the main observed process; thermal decomposition was the secondary process during the heating of TEX in open pans. With increasing substance mass, the participation of thermal decomposition of TEX increased. Uncontrolled thermal decomposition was observed for larger mass of a sample. The sublimation and decomposition processes were confirmed by FT-IR method. Thermal decomposition was the main process observed during heating the sample of TEX in hermetic pans. Sublimation of a sample was marginal. The sublimation effect decreased with increasing the degree of fulfillment pan. The kinetic parameters were determined with the Friedman's isoconversional method. The conversion, mass of sample and the type of pan caused the large changes in the values of kinetic parameters. The apparent activation energy varied from 128 to 355 kJ mol -1 and logA varied from 9.95 to 30.64 in initial step (a = 0.02) for different condition of measurements. The low values of apparent activation energy (about 130 kJ mol -1 ) were associated with sublimation process and the high values (about 340 kJ mol -1 ) with the decomposition process.

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confidence: 96%

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confidence: 96%

Thermal properties of TEX decomposition or sublimation

Gańczyk

Zygmunt

Gołofit

2016

J Therm Anal Calorim

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“…In the case of the Okazaki spectrograph exposure, yellowness index decreased with increasing radiation wavelength until to about 360 nm, discoloration begins to decrease below the discoloration of an unexposed sample, meaning that radiation wavelength above 360 nm caused photobleaching. 48 Figure 5.19 shows that tensile strength is even less affected than elongation (4% drop vs. 10% drop in elongation in the same study). 11 Earlier photobleaching in the case of cut-off filers (Figure 5.15) can be explained by the differences in temperature.…”

Section: Terminationmentioning

confidence: 66%

Principles of Uv Degradation

Wypych¹

2015

PVC Degradation and Stabilization

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“…94 Unlike TGA results, spectroscopic studies were not affected by plasticizer loss. 94 Unlike TGA results, spectroscopic studies were not affected by plasticizer loss.…”

Section: Mass Lossmentioning

confidence: 83%

Analytical Methods

Wypych¹

2015

PVC Degradation and Stabilization

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Kinetics of thermal degradation of poly(vinyl chloride)

Cited by 53 publications

References 64 publications

Thermal properties of TEX decomposition or sublimation

Thermal properties of TEX decomposition or sublimation

Principles of Uv Degradation

Analytical Methods

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