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2.3.1. Attenuated Total Reflectance-Fourier Transform Infrared (ATR-IR) Spectroscopy

MF Mónica Fuensanta
JM José Miguel Martín-Martínez
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The chemical structure and degree of micro-phase separation of the TPUs were analyzed by ATR-IR spectroscopy. The ATR-IR spectra was collected in a Tensor 27 FT-IR spectrometer (Bruker Optik GmbH, Ettlinger, Germany) by using a Golden Gate single reflection diamond ATR accessory. All ATR-IR spectra were normalized to the most intense absorbance band. On the other hand, the curve fitting of the carbonyl region (1800–1650 cm−1) of the ATR-IR spectra was performed with the Origin 8.0 software program; the Gaussian function provided the best fit.

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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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