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

Date
1994
Advisor
Supervisor
Co-Advisor
Co-Supervisor
Instructor
Source Title
The Analyst
Print ISSN
0003-2654
Electronic ISSN
Publisher
Royal Society of Chemistry
Volume
119
Issue
4
Pages
693 - 696
Language
English
Type
Article
Journal Title
Journal ISSN
Volume Title
Series
Abstract

Thermal analysis of polystyrene, poly(p-methylstyrene) and poly(α-methylstyrene) has been carried out using evolved-gas analysis by infrared and mass spectrometry, and direct-pyrolysis 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.

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Book Title
Keywords
Polymer, Pyrolysis, Infrared technique, Mass spectrometry
Citation
Published Version (Please cite this version)