Analysis of Polyethylene Terephthalate by TG-FTIR

Introduction

TG-FTIR is a relatively simple FTIR-coupled analytical technique in which the FTIR is coupled with a thermogravimetric analyzer (TG). In TG-FTIR, while mass changes such as sample decomposition and vaporization that accompany changes in temperature are measured quantitatively by the TG, qualitative analysis of the evolved gases can be conducted simultaneously by FTIR measurement of the obtained spectra. This Application News introduces an example of analysis of a polyethylene terephthalate sample in nitrogen and air atmospheres.

January 23, 2007 GMT