TGA coupled with FTIR gas analysis to quantify the vinyl alcohol unit content in ethylene-vinyl alcohol copolymer

Authors :: Francesco Turci
Ingrid Corazzari
Roberto Nisticò
Corazzari, I
Turci, F
Nisticò, R
Source :: Materials Letters. 284:129030
Publication Year :: 2021
Publisher :: Elsevier BV, 2021.
Abstract: Thermo-gravimetric analysis coupled to time/temperature-resolved FTIR spectroscopy of evolved gases was used to measure the vinyl alcohol units content in EVOH copolymer. Pure homopolymers were used as references. The quantitative analysis here proposed is based on the calculation of integral profiles relative to FTIR signals of water molecules evolved during the thermal degradation (pyrolysis) of vinyl alcohol units.

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