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A novel X-ray diffraction approach to assess the crystallinity of regenerated cellulose fibers

Gentile, Luigi LU ; Sixta, Herbert ; Giannini, Cinzia and Olsson, Ulf LU (2022) In IUCrJ 9. p.492-496
Abstract

Here, a new accurate approach is presented to quantify the degree of crystallinity of regenerated cellulose textile fibers using wide-angle X-ray scattering. The approach is based on the observation that the contributions to the scattering from crystalline and amorphous domains of the fibers can be separated due to their different degree of orientation with respect to the fiber direction. The method is tested on Ioncell-F fibers, dry jet wet spun with different draw ratios from an ionic liquid solution. The analysis output includes, apart from an accurate estimate of the fiber crystallinity, the degrees of orientation of the cellulose nanocrystals and the cellulose chains in the amorphous domains.

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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
cellulose, crystalline domains, crystallinity, draw ratios, fibers, framework-structured solids and amorphous materials, nanostructure, orientations, wide-angle X-ray scattering, X-ray diffraction
in
IUCrJ
volume
9
pages
5 pages
publisher
International Union of Crystallography
external identifiers
  • scopus:85133703509
  • pmid:35844479
ISSN
2052-2525
DOI
10.1107/S205225252200570X
language
English
LU publication?
yes
additional info
Funding Information: UO thanks the Swedish Research Council for financial support.
id
b68cbcac-af70-472e-8427-4bb03c2eb552
date added to LUP
2022-09-07 14:22:46
date last changed
2025-04-04 13:53:29
@article{b68cbcac-af70-472e-8427-4bb03c2eb552,
  abstract     = {{<p>Here, a new accurate approach is presented to quantify the degree of crystallinity of regenerated cellulose textile fibers using wide-angle X-ray scattering. The approach is based on the observation that the contributions to the scattering from crystalline and amorphous domains of the fibers can be separated due to their different degree of orientation with respect to the fiber direction. The method is tested on Ioncell-F fibers, dry jet wet spun with different draw ratios from an ionic liquid solution. The analysis output includes, apart from an accurate estimate of the fiber crystallinity, the degrees of orientation of the cellulose nanocrystals and the cellulose chains in the amorphous domains. </p>}},
  author       = {{Gentile, Luigi and Sixta, Herbert and Giannini, Cinzia and Olsson, Ulf}},
  issn         = {{2052-2525}},
  keywords     = {{cellulose; crystalline domains; crystallinity; draw ratios; fibers; framework-structured solids and amorphous materials; nanostructure; orientations; wide-angle X-ray scattering; X-ray diffraction}},
  language     = {{eng}},
  month        = {{07}},
  pages        = {{492--496}},
  publisher    = {{International Union of Crystallography}},
  series       = {{IUCrJ}},
  title        = {{A novel X-ray diffraction approach to assess the crystallinity of regenerated cellulose fibers}},
  url          = {{http://dx.doi.org/10.1107/S205225252200570X}},
  doi          = {{10.1107/S205225252200570X}},
  volume       = {{9}},
  year         = {{2022}},
}