APPLICATION OF THE MODIFIED RULAND METHOD FOR CALCULATING THE DEGREE OF CRYSTALLINITY OF CELLULOSE SAMPLES

  • A.I. Prusskii Petrozavodsk State University Email: prusskiiandrey@gmail.com
  • N.E. Kotelnikova Institute of Macromolecular Compounds, Russian Academy of Sciences Email: nkotel@mail.ru
Keywords: natural polymers, celullose, modification, X-ray diffraction analysis, Ruland method, hydrogel

Abstract

Cellulose is the most abundant natural biopolymer. This polysaccharide is widely used in various fields such as pharmaceuticals, medicine, and industry, which is partly due to its high availability, low cost, and exceptional mechanical properties, particularly high Young's modulus. The mechanical and physicochemical properties of cellulose are determined by its supramolecular and morphological structure, specifically the perfection of its amorphous-crystalline state. The relative content of crystalline material in cellulose is described by the crystallinity index (degree of crystallinity). In this work, the crystallinity indices of previously studied cellulose samples and hydrogel derived from powdered cellulose were calculated using the modified Ruland method. The scattering pattern of the latter is atypical and is not fully described by theoretical models.

Author Biographies

A.I. Prusskii, Petrozavodsk State University

Ph.D. in Physics and Mathematics, Associate Professor of the Department of Solid State Physics

N.E. Kotelnikova, Institute of Macromolecular Compounds, Russian Academy of Sciences

Dr. Sci. of Chemistry, Leading Researcher Laboratory No. 19 of Physical Chemistry of Polymers

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Published
2024-11-02
How to Cite
Prusskii A., Kotelnikova N. APPLICATION OF THE MODIFIED RULAND METHOD FOR CALCULATING THE DEGREE OF CRYSTALLINITY OF CELLULOSE SAMPLES // BIOAsia-Altai, 2024. Vol. 4, № 1. P. 173-177. URL: https://journal.asu.ru/bioasia/article/view/16165.
Issue
Vol 4 No 1 (2024): International Biotechnology Forum “BIOAsia-Altai”
Section
Biotechnology for Industry and Agriculture

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