Analysis of polymers using evolved-gas and direct-pyrolysis techniques

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1994-12-01
Fares, Mohammed M.
Yalcin, Talat
Hacaloğlu, Jale
Gungor, Atilla
Suzer, Sefik
Thermal analysis of polystyrene, poly(p-methylstyrene) and poly(a-methylstyrene) has been carried out using evolved-gas analysis by infrared and mass spectrometry, and directpyrolysis analysis by mass spectrometric techniques. Evolved-gas analysis, both by infrared and mass spectrometry, reveals features due mainly to the corresponding monomers or stable, volatile, and low relative molecular mass degradation products. In direct-pyrolysis mass spectrometry, however, primary decomposition products and heavier fragments such as dimers and trimers can also be detected. The ion-temperature profiles of the corresponding monomer ions reveal information about the thermal stability of the polymers.
The Analyst

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Citation Formats
M. M. Fares, T. Yalcin, J. Hacaloğlu, A. Gungor, and S. Suzer, “Analysis of polymers using evolved-gas and direct-pyrolysis techniques,” The Analyst, pp. 693–696, 1994, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30544.