Abstract
The thermal decompositions of poly(ethylene terephthalate) (PET) and poly(butylene terephthalate) (PBT) were measured by a simultaneous TG-DTA/FT-IR system. Two kinds of data, FT-IR spectra and the specific gas profiles (SGP), were collected as a function of temperature, in addition to the TG-DTA data. Evolved gas analysis was carried out in terms of specific gas profiles (SGP) at the specific absorption band. Kinetic analysis was performed on both the TG and SGP curves obtained at various heating rates, and the activation energy estimated from the TG curves was in agreement with that obtained from the SGP curves of the aromatic esters of PBT. In the case of PET, the activation energy obtained from the TG curves was an average of that calculated from the SGP curves for the aromatic esters and carbon dioxide.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.