Transparent, flexible, and strong 2,3-dialdehyde cellulose films with high oxygen barrier properties

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Plappert , S F , Quraishi , S , Pircher , N , Mikkonen , K S , Veigel , S , Klinger , K M , Potthast , A , Rosenau , T & Liebner , F W 2018 , ' Transparent, flexible, and strong 2,3-dialdehyde cellulose films with high oxygen barrier properties ' , Biomacromolecules , vol. 19 , no. 7 , pp. 2969-2978 . https://doi.org/10.1021/acs.biomac.8b00536

Title: Transparent, flexible, and strong 2,3-dialdehyde cellulose films with high oxygen barrier properties
Author: Plappert, Sven F.; Quraishi, Sakeena; Pircher, Nicole; Mikkonen, Kirsi S.; Veigel, Stefan; Klinger, Karl Michael; Potthast, Antje; Rosenau, Thomas; Liebner, Falk W.
Contributor: University of Helsinki, Department of Food and Nutrition
Date: 2018-07
Language: eng
Number of pages: 10
Belongs to series: Biomacromolecules
ISSN: 1525-7797
URI: http://hdl.handle.net/10138/301160
Abstract: 2,3-Dialdehyde cellulose (DAC) of a high degree of oxidation (92% relative to AGU units) prepared by oxidation of microcrystalline cellulose with sodium periodate (48 degrees C, 19 h) is soluble in hot water. Solution casting, slow air drying, hot pressing, and reinforcement by cellulose nanocrystals afforded films (similar to 100 mu m thickness) that feature intriguing properties: they have very smooth surfaces (SEM), are highly flexible, and have good light transmittance for both the visible and near-infrared range (89-91%), high tensile strength (81-122 MPa), and modulus of elasticity (3.4-4.0 GPa) depending on hydration state and respective water content. The extraordinarily low oxygen permeation of
Subject: NITROGEN-CONTAINING DERIVATIVES
TISSUE ENGINEERING SCAFFOLDS
DIALDEHYDE CELLULOSE
PERIODATE-OXIDATION
MECHANICAL-PROPERTIES
PHYSICAL-PROPERTIES
ION
POLYSACCHARIDES
IMMOBILIZATION
NANOCOMPOSITES
1182 Biochemistry, cell and molecular biology
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