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Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating

Transparent films of cellulose nanocrystals (CNC) are prepared by dip-coating on glass substrates from aqueous suspensions of hydrolyzed filter paper. Dragging forces acting during films’ deposition promote a preferential alignment of the rod-shaped CNC. Films that are 2.8 and 6.0 µm in thickness sh...

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Autores principales: Mendoza-Galván, Arturo, Tejeda-Galán, Tania, Domínguez-Gómez, Amos B., Mauricio-Sánchez, Reina Araceli, Järrendahl, Kenneth, Arwin, Hans
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359005/
https://www.ncbi.nlm.nih.gov/pubmed/30602653
http://dx.doi.org/10.3390/nano9010045
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author Mendoza-Galván, Arturo
Tejeda-Galán, Tania
Domínguez-Gómez, Amos B.
Mauricio-Sánchez, Reina Araceli
Järrendahl, Kenneth
Arwin, Hans
author_facet Mendoza-Galván, Arturo
Tejeda-Galán, Tania
Domínguez-Gómez, Amos B.
Mauricio-Sánchez, Reina Araceli
Järrendahl, Kenneth
Arwin, Hans
author_sort Mendoza-Galván, Arturo
collection PubMed
description Transparent films of cellulose nanocrystals (CNC) are prepared by dip-coating on glass substrates from aqueous suspensions of hydrolyzed filter paper. Dragging forces acting during films’ deposition promote a preferential alignment of the rod-shaped CNC. Films that are 2.8 and 6.0 µm in thickness show retardance effects, as evidenced by placing them between a linearly polarized light source and a linear polarizer sheet in the extinction configuration. Transmission Mueller matrix spectroscopic ellipsometry measurements at normal incidence as a function of sample rotation were used to characterize polarization properties. A differential decomposition of the Mueller matrix reveals linear birefringence as the unique polarization parameter. These results show a promising way for obtaining CNC birefringent films by a simple and controllable method.
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spelling pubmed-63590052019-02-06 Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating Mendoza-Galván, Arturo Tejeda-Galán, Tania Domínguez-Gómez, Amos B. Mauricio-Sánchez, Reina Araceli Järrendahl, Kenneth Arwin, Hans Nanomaterials (Basel) Article Transparent films of cellulose nanocrystals (CNC) are prepared by dip-coating on glass substrates from aqueous suspensions of hydrolyzed filter paper. Dragging forces acting during films’ deposition promote a preferential alignment of the rod-shaped CNC. Films that are 2.8 and 6.0 µm in thickness show retardance effects, as evidenced by placing them between a linearly polarized light source and a linear polarizer sheet in the extinction configuration. Transmission Mueller matrix spectroscopic ellipsometry measurements at normal incidence as a function of sample rotation were used to characterize polarization properties. A differential decomposition of the Mueller matrix reveals linear birefringence as the unique polarization parameter. These results show a promising way for obtaining CNC birefringent films by a simple and controllable method. MDPI 2018-12-31 /pmc/articles/PMC6359005/ /pubmed/30602653 http://dx.doi.org/10.3390/nano9010045 Text en © 2018 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
Mendoza-Galván, Arturo
Tejeda-Galán, Tania
Domínguez-Gómez, Amos B.
Mauricio-Sánchez, Reina Araceli
Järrendahl, Kenneth
Arwin, Hans
Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
title Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
title_full Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
title_fullStr Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
title_full_unstemmed Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
title_short Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
title_sort linear birefringent films of cellulose nanocrystals produced by dip-coating
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6359005/
https://www.ncbi.nlm.nih.gov/pubmed/30602653
http://dx.doi.org/10.3390/nano9010045
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