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A rapid pyrolysis mass spectrometry technique for the study of polymers

Hacaloğlu, Jale
Ersen, Taner
Pyrolysis techniques coupled to mass spectrometers are used to investigate thermal stability, thermal degradation mechanisms and decomposition products of synthetic polymers. Each pyrolysis technique has its own advantages and limitations. The main objective of this study was to investigate the applicability of a rapid pyrolysis mass spectrometry technique for thermal analysis of polymers. For this purpose, thermal degradation of polymers, namely polystyrene, polybutadiene, styrene butadiene rubber, and styrene-butadiene-styrene block copolymer have been studied using a rapid pyrolysis mass spectrometry technique and results were compared with our previous data obtained using direct and indirect pyrolysis mass spectrometry techniques. Results indicate that not only the pyrolysis technique applied, but also the heating rate, affects thermal degradation as expected. It was also shown that the present rapid pyrolysis mass spectrometry system is a fast and powerful technique in investigating the thermal behavior of homopolymers, and of random and block copolymers.