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Thermal behavior and curing kinetics of poly(carbosilane)
Author(s) -
Suwardie Herman,
Kalyon Dilhan M.,
Kovenklioglu Suphan
Publication year - 1991
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/app.1991.070420422
Subject(s) - curing (chemistry) , thermogravimetric analysis , kinetics , differential scanning calorimetry , materials science , pyrolysis , silicon carbide , composite material , polymer chemistry , chemical engineering , thermodynamics , physics , quantum mechanics , engineering
This study focuses on the thermal behavior and curing kinetics of a commercially available poly(carbosilane). Poly(carbosilane) is used for the production of silicon carbide (SiC) fibers by high‐temperature pyrolysis. Thermal characterization studies were carried out by employing a differential scanning calorimeter and thermogravimetric analyzer. The change in the chemical structure during curing with oxygen was studied with an infrared spectrometer. It was found that the uncured poly(carbosilane) would froth under a nitrogen environment around 450°C. Curing with oxygen, which results in crosslinking at the surface, enables the sample to retain its shape during high‐temperature pyrolysis. Curing was carried out at various temperatures, and the kinetics of the curing reactions were characterized.