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04.07.2019 | Original Research

Analytical ultracentrifugation and other techniques in studying highly disperse nano-crystalline cellulose hybrids

Zeitschrift:
Cellulose
Autoren:
I. Perevyazko, E. V. Lebedeva, M. P. Petrov, M. E. Mikhailova, N. G. Mikusheva, O. S. Vezo, M. A. Torlopov, I. S. Martakov, P. V. Krivoshapkin, N. V. Tsvetkov, U. S. Schubert
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Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s10570-019-02577-9) contains supplementary material, which is available to authorized users.

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Abstract

The development of functional nano-crystalline cellulose hybrid suspensions has been in the focus of many areas of industry and academia for the past decades. The attention is elucidated from a unique biocompatible, mechanical, solution etc. properties of cellulose based systems. Fabrication of functional cellulose hybrids with customized features requires detailed knowledge of their final properties as well as understanding the structure–property relationships between the initial ingredients. The reported study investigates the formation and corresponding fundamental solution and molecular characteristics of highly disperse nano-crystalline cellulose hybrids with aluminum oxide nanoparticles. The characterization of the final complexes and its primary components was performed mainly in solution, using basic complementary hydrodynamic approaches, substantially—sedimentation velocity analysis in the analytical ultracentrifuge and related techniques. The analysis of the solution behavior resolved information about the hydrodynamic size, molar mass, shape, asymmetry and composition of the complexes. Additionally morphology of the cellulose hybrids was investigated by scanning force microscopy. To this end we demonstrate complete structural examination of highly disperse colloidal suspensions of crystal nano-cellulose modified by aluminum nanoparticles using classical solution characterization techniques.

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Zusatzmaterial
Supplementary material 1 (DOCX 47 kb)
10570_2019_2577_MOESM1_ESM.docx
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