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Analysis of volatiles evolved during high‐temperature treatment of thermally stable polymers. II. Polybutadiyne
Author(s) -
Mera Ann E.,
Snow Arthur W.
Publication year - 1996
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/(sici)1097-4628(19960425)60:4<609::aid-app15>3.0.co;2-u
Subject(s) - polymer , materials science , polymer science , chemical engineering , composite material , polymer chemistry , engineering
Polybutadiyne samples were heated at 20°C/min up to 1200°C in a pyroprobe attached to a gas chromatograph/mass spectrometer (GC/MS). Analysis of the volatiles evolved during heating identified carbon dioxide (adsorbed on polymer surface), methane, ethylene, benzene, toluene, and traces of higher aromatics. Correlations have been made between sample temperature and evolution (onset, maximum, and end temperatures) of each of the five listed volatiles. Average polybutadiyne weight loss at 1200°C was 14 ± 2%. Two cure studies were performed in the pyroprobe, and it was shown that both weight loss and volatile evolution were affected. The results were consistent with a higher degree of polymer cross‐linking as cure time and temperature increased. © 1996 John Wiley & Sons, Inc.