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An Integrated Approach to Optimizing Cellulose Mercerization

An integrated approach, based on quantitative transmission mode powder X-ray diffraction (PXRD) combined with multivariate statistical analysis, has been applied to cellulose obtained from three different sources to correlate the mercerization degree and crystallinity with the cellulose type, temper...

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Detalles Bibliográficos
Autores principales: Ferro, Monica, Mannu, Alberto, Panzeri, Walter, Theeuwen, Con H.J., Mele, Andrea
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7407994/
https://www.ncbi.nlm.nih.gov/pubmed/32674445
http://dx.doi.org/10.3390/polym12071559
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author Ferro, Monica
Mannu, Alberto
Panzeri, Walter
Theeuwen, Con H.J.
Mele, Andrea
author_facet Ferro, Monica
Mannu, Alberto
Panzeri, Walter
Theeuwen, Con H.J.
Mele, Andrea
author_sort Ferro, Monica
collection PubMed
description An integrated approach, based on quantitative transmission mode powder X-ray diffraction (PXRD) combined with multivariate statistical analysis, has been applied to cellulose obtained from three different sources to correlate the mercerization degree and crystallinity with the cellulose type, temperature, and reaction time. The effects of the experimental conditions on the two outcomes were studied by design of experiments (DoE) and surface responding analysis (SRA) combined with principal component analysis (PCA). SRA showed a marked influence of the type of cellulose (wood cellulose from the kraft vs. sulfite process, WCK vs. WCS) on the conversion of cellulose I to cellulose II (CII%) during mercerization. A counterintuitive simultaneous effect of temperature and cellulose type was also highlighted. The data elaboration in the form of response surface plots provided an easy predictive tool for the optimum conditions to maximize the conversion. The simulation reported for WCK showed maximum conversion (96%) at 70 °C in 24 h with 18%wt NaOH.
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spelling pubmed-74079942020-08-12 An Integrated Approach to Optimizing Cellulose Mercerization Ferro, Monica Mannu, Alberto Panzeri, Walter Theeuwen, Con H.J. Mele, Andrea Polymers (Basel) Article An integrated approach, based on quantitative transmission mode powder X-ray diffraction (PXRD) combined with multivariate statistical analysis, has been applied to cellulose obtained from three different sources to correlate the mercerization degree and crystallinity with the cellulose type, temperature, and reaction time. The effects of the experimental conditions on the two outcomes were studied by design of experiments (DoE) and surface responding analysis (SRA) combined with principal component analysis (PCA). SRA showed a marked influence of the type of cellulose (wood cellulose from the kraft vs. sulfite process, WCK vs. WCS) on the conversion of cellulose I to cellulose II (CII%) during mercerization. A counterintuitive simultaneous effect of temperature and cellulose type was also highlighted. The data elaboration in the form of response surface plots provided an easy predictive tool for the optimum conditions to maximize the conversion. The simulation reported for WCK showed maximum conversion (96%) at 70 °C in 24 h with 18%wt NaOH. MDPI 2020-07-14 /pmc/articles/PMC7407994/ /pubmed/32674445 http://dx.doi.org/10.3390/polym12071559 Text en © 2020 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Ferro, Monica
Mannu, Alberto
Panzeri, Walter
Theeuwen, Con H.J.
Mele, Andrea
An Integrated Approach to Optimizing Cellulose Mercerization
title An Integrated Approach to Optimizing Cellulose Mercerization
title_full An Integrated Approach to Optimizing Cellulose Mercerization
title_fullStr An Integrated Approach to Optimizing Cellulose Mercerization
title_full_unstemmed An Integrated Approach to Optimizing Cellulose Mercerization
title_short An Integrated Approach to Optimizing Cellulose Mercerization
title_sort integrated approach to optimizing cellulose mercerization
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7407994/
https://www.ncbi.nlm.nih.gov/pubmed/32674445
http://dx.doi.org/10.3390/polym12071559
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