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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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 |
work_keys_str_mv |
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