Thermal and thermo-oxidative degradation of polyformaldehyde—II. Temperature dependence of the thermal degradation rate

1963 ◽  
Vol 4 (6) ◽  
pp. 1678-1679
Keyword(s):  
Thermal Degradation ◽  
Temperature Dependence ◽  
Degradation Rate ◽  
Oxidative Degradation ◽  
Thermo Oxidative Degradation

Thermal and Thermo-Oxidative Degradation of Polystyrene with Ammonium Polyphosphate

1996 ◽  
Vol 14 (6) ◽  
pp. 443-465 ◽  
Author(s):  
Xinsheng Zhu
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Fourier Transform ◽  
Thermal Degradation ◽  
Oxidative Degradation ◽  
Ammonium Polyphosphate ◽  
Size Exclusion ◽  
Gas Chromatography Mass Spectrometry ◽  
Exclusion Chromatography ◽  
Thermo Oxidative Degradation

The effect of ammonium polyphosphate (APP) on thermal and thermo-oxidative degradation of polystyrene (PS) was studied with methods of Thermogravimetry (TG), Gas Chromatography/Mass Spectrometry (GC/MS), Thermochromatography (ThGC), Size Exclusion Chromatography (SEC), and Fourier Transform Infrared Spectra (IR). APP slightly accelerated thermal degradation of PS in nitrogen due to its acidity. However, whether APP accel erated or retarded thermo-oxidative degradation of PS much depended on addi tion levels in air. At the low addition levels, APP seemed to retard thermal degradation of PS via formation of a glassy layer; at the high addition levels, APP seemed to accelerate thermal degradation of PS due to its acidity.

Multilateral characterization of recombinant spider silk in thermal degradation

2017 ◽  
Vol 8 (6) ◽  
pp. 1049-1060 ◽  
Author(s):  
Anh T. N. Dao ◽  
K. Nakayama ◽  
J. Shimokata ◽  
T. Taniike
Keyword(s):  
Thermal Degradation ◽  
Correlation Coefficient ◽  
Spider Silk ◽  
Oxidative Degradation ◽  
Complex Mechanism ◽  
Thermo Oxidative Degradation

Elucidating the complex mechanism of thermo-oxidative degradation of recombinant spider silk by systematic characterization and correlation coefficient approach.

TG-DTA-FTIR analysis and isoconversional reaction profiles for thermal and thermo-oxidative degradation processes in black chokeberry (Aroniamelanocarpa)

2016 ◽  
Vol 70 (8) ◽  
Author(s):  
Bojan Janković ◽  
Milena Marinović-Cincović ◽  
Marija Janković
Keyword(s):  
Degradation Rate ◽  
Oxidative Degradation ◽  
Argon Atmosphere ◽  
Ftir Analysis ◽  
Acid Degradation ◽  
Isoconversional Analysis ◽  
Black Chokeberry ◽  
Oxidative Processes ◽  
Intrinsic Kinetic ◽  
Thermo Oxidative Degradation

AbstractThe thermal and thermo-oxidative processes in Aroniamelanocarpa (black chokeberry) were investigated using combined thermo-analytical (TG-DTA) and spectroscopic (FTIR) experimental techniques. Isoconversional analysis revealed that the process in an inert (argon) atmosphere was probably governed by chlorogenic acid degradation, where autocatalysis (described by the empirical Šesták–Berggren model) might occur due to water already present in the early stages of the process through hydrolysis. Thermal degradation is described by the intrinsic kinetic parameters, where the degradation rate increases proportionally with an increase in the heating rate. Under oxidative conditions, the process was found to be primarily driven by neochlorogenic acid degradation. The thermo-oxidative degradation of

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