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Multivariable methods applied to FTIR: a powerful technique to highlight architectural changes in poly(lactic acid)

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10.1016/j.polymertesting.2017.12.003
 
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Riba Ruiz, Jordi-RogerMés informacióMés informacióMés informació
Cailloux, JonathanMés informacióMés informació
Cantero, R.
Canals Parelló, Trini
Maspoch Rulduà, M. LluïsaMés informacióMés informacióMés informació
Document typeArticle
Defense date2018-02-01
PublisherElsevier
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
This work is protected by the corresponding intellectual and industrial property rights. Except where otherwise noted, its contents are licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
The structural modifications of a commercially available poly(lactid acid) grade were induced through reactive extrusion using a multi-epoxide reactive agent in a pilot plant. The statistical nature of the chemical reactions led to the generation of several types of non-uniform molecular architectures. Even though conventional spectroscopic (NMR) or chromatographic (SEC-static light scattering) techniques are placed at the forefront of the molecular characterization, both methods usually failed in characterizing non-uniform structures. In this study, a promising approach was applied to automatically classify modified PLA samples. It is based on the analysis of FTIR spectral data by means of multivariable methods, including feature extraction and classification algorithms. The fast and accurate results presented in this paper show the potential of the proposed approach.
CitationRiba, J., Cailloux, J., Cantero, R., Canals, T., Maspoch, M. Multivariable methods applied to FTIR: a powerful technique to highlight architectural changes in poly(lactic acid). "Polymer testing", 1 Febrer 2018, vol. 65, p. 264-269. 
URIhttp://hdl.handle.net/2117/113515
DOI10.1016/j.polymertesting.2017.12.003
ISSN0142-9418
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0142941817314514
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