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 &mic...

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Main Authors: Arturo Mendoza-Galván, Tania Tejeda-Galán, Amos B. Domínguez-Gómez, Reina Araceli Mauricio-Sánchez, Kenneth Järrendahl, Hans Arwin
Format: Article
Language:English
Published: MDPI AG 2018-12-01
Series:Nanomaterials
Subjects:
Online Access:http://www.mdpi.com/2079-4991/9/1/45
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spelling doaj-edd3e3cc80934240bc29ab3ca050c3ff2020-11-24T23:58:42ZengMDPI AGNanomaterials2079-49912018-12-01914510.3390/nano9010045nano9010045Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-CoatingArturo Mendoza-Galván0Tania Tejeda-Galán1Amos B. Domínguez-Gómez2Reina Araceli Mauricio-Sánchez3Kenneth Järrendahl4Hans Arwin5Cinvestav-Querétaro, Libramiento Norponiente 2000, 76230 Querétaro, MexicoCinvestav-Querétaro, Libramiento Norponiente 2000, 76230 Querétaro, MexicoCinvestav-Querétaro, Libramiento Norponiente 2000, 76230 Querétaro, MexicoCinvestav-Querétaro, Libramiento Norponiente 2000, 76230 Querétaro, MexicoMaterials Optics, Department of Physics, Chemistry and Biology, Linköping University, SE-58183, Linköping, SwedenMaterials Optics, Department of Physics, Chemistry and Biology, Linköping University, SE-58183, Linköping, SwedenTransparent 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.http://www.mdpi.com/2079-4991/9/1/45nanostructured filmsbirefringencenanocrystalline celluloseMueller matrix
collection DOAJ
language English
format Article
sources DOAJ
author Arturo Mendoza-Galván
Tania Tejeda-Galán
Amos B. Domínguez-Gómez
Reina Araceli Mauricio-Sánchez
Kenneth Järrendahl
Hans Arwin
spellingShingle Arturo Mendoza-Galván
Tania Tejeda-Galán
Amos B. Domínguez-Gómez
Reina Araceli Mauricio-Sánchez
Kenneth Järrendahl
Hans Arwin
Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
Nanomaterials
nanostructured films
birefringence
nanocrystalline cellulose
Mueller matrix
author_facet Arturo Mendoza-Galván
Tania Tejeda-Galán
Amos B. Domínguez-Gómez
Reina Araceli Mauricio-Sánchez
Kenneth Järrendahl
Hans Arwin
author_sort Arturo Mendoza-Galván
title Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
title_short 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_sort linear birefringent films of cellulose nanocrystals produced by dip-coating
publisher MDPI AG
series Nanomaterials
issn 2079-4991
publishDate 2018-12-01
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.
topic nanostructured films
birefringence
nanocrystalline cellulose
Mueller matrix
url http://www.mdpi.com/2079-4991/9/1/45
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