Abstract
The thermal degradation behavior and the stability of polyacrylate adhesives were evaluated by evolved gas analysis–mass spectrometry (EGA–MS) and evolved gas analysis–gas chromatography/mass spectrometry (EGA–GC/MS). Thermal degradation processes of two steps for adhesives 1 and 2 were found from EGA–MS analysis, and the evolved gases from each thermal zone were analyzed by EGA–GC/MS. The degradation products and a residual monomer caused by isobornyl acrylate of adhesive 1 were evolved from 100°C to 170°C. These fumes are able to cause a failure of the optical transparency of double-sided ITO (Indium tin oxide) film throughout the ITO crystallization process. The thermal degradation of adhesive 2 occurred at a higher temperature of ca. 50°C compared to adhesive 1. Consequently, adhesive 2 is more thermo-stable than adhesive 1.
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