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Vacuum pyrolysis of polystyrene oligomers

✍ Scribed by Richard H. Still; Olufemi A. Peters

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
377 KB
Volume
50
Category
Article
ISSN
0021-8995

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✦ Synopsis

Oligomers of polystyrene (PS) obtained from initial degradation studies of an anionic polymerized styrene have been degraded in uucuo using the molecular still method at temperatures between 150 and 250Β°C. The volatile decomposition products were separated and characterized by gel permeation chromatography, gas liquid chromatography, infrared spectroscopy, mass spectroscopy, and nuclear magnetic resonance. The products of pyrolysis showed that at 150Β°C the major component formed was the dimer, whereas at 250Β°C, the trimer was the major component.

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