Polyvinylpyrrolidone thin film pyrolysis as accessed by the real-time optical transmission measurements

• Published in: Journal of thermal analysis and calorimetry Vol. 114; no. 1; pp. 417 - 422
• Main Authors: Majling, Jan, Bača, Luboš, Kozánková, Jana, Kocifaj, Miroslav, Füglein, Ekkehard
• Format: Journal Article
• Language: English
• Published: Dordrecht Springer Netherlands 01.10.2013; Springer
• Subjects: Analytical Chemistry; Applied sciences; Chemical reactions and properties; Chemistry; Chemistry and Materials Science; Degradation; Dielectric films; Exact sciences and technology; Inorganic Chemistry; Measurement Science and Instrumentation; Nuclear radiation; Organic polymers; Physical Chemistry; Physicochemistry of polymers; Polymer Sciences; Pyrolysis; Thin films; Thin films; Pyrolysis; PVP; Optical transmission method; PVP thermal degradation; Thermogravimetry; Pyrrolidone(vinyl) polymer; Optical transmission; Thermal analysis; Real time; Thin film; Thermal degradation
• ISSN: 1388-6150; 1588-2926; 1572-8943
• DOI: 10.1007/s10973-013-2954-1

Present results reveal basic features of the optical transmission thermo-analytical method in its employment to investigate the oxidative pyrolysis of supported thin polyvinylpyrrolidone films. The OT curves naturally vary in shapes and positions on the time/temperature scales, respective to the examined rate of sample heating, to the wavelengths of radiation as well as to the film thickness. Recorded OT curves exhibit characteristic shapes with well-expressed OT minima. The temperatures at which the OT minima appear are in a linear relationship with heating rates of samples, at a frequency of radiation as well as a film thickness kept constant. Similarly, the OT values at which the OT minima appear are in a linear relationship with film thickness, at a frequency of the radiation and sample heating rate unchanged.