Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating
AbstractTransparent 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. View Full-Text
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Mendoza-Galván, A.; Tejeda-Galán, T.; Domínguez-Gómez, A.B.; Mauricio-Sánchez, R.A.; Järrendahl, K.; Arwin, H. Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating. Nanomaterials 2019, 9, 45.
Mendoza-Galván A, Tejeda-Galán T, Domínguez-Gómez AB, Mauricio-Sánchez RA, Järrendahl K, Arwin H. Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating. Nanomaterials. 2019; 9(1):45.Chicago/Turabian Style
Mendoza-Galván, Arturo; Tejeda-Galán, Tania; Domínguez-Gómez, Amos B.; Mauricio-Sánchez, Reina A.; Järrendahl, Kenneth; Arwin, Hans. 2019. "Linear Birefringent Films of Cellulose Nanocrystals Produced by Dip-Coating." Nanomaterials 9, no. 1: 45.
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