Solid structure of native celluloses from different origins and their solubility in LiCl/amide systems

Daisuke Ishii, Daisuke Tatsumi, Hajime Aono, Nobutake Tamai, Takayoshi Matsumoto

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Native celluloses from different origins show variant solubility in lithium chloride/amide solvent system. The solubility of some of native cellulose is enhanced by solvent exchange procedure, namely sequential immersion in water, acetone, and amide solvents. In order to investigate the effect of the solvent exchange on the solubility and the solid structure of native celluloses, small angle X-ray scattering (SAXS), cross-polarized/magic angle spinning (CP/MAS) 13C solid-state NMR, and X-ray photoelectron spectroscopy (XPS) measurements were performed. It was revealed from SAXS and solid-state NMR that the solvent exchange significantly affects the submicron-scale solid structure of wood and cotton celluloses. On the other hand, that of microbial and tunicate celluloses is less affected by the solvent exchange. The structural change induced by the solvent exchange is relevant to the enhancement of the solubility, which is supported by the fact that the XPS detected a vestige of dimethylacetamide (DMAc) molecules strongly absorbed on the surface of the cellulose sample even under an extreme vacuum condition.

Original languageEnglish
Pages (from-to)273-278
Number of pages6
JournalZairyo/Journal of the Society of Materials Science, Japan
Volume59
Issue number4
DOIs
Publication statusPublished - Apr 1 2010

Fingerprint

cellulose
Amides
Cellulose
amides
solubility
Solubility
X ray scattering
x rays
X ray photoelectron spectroscopy
Nuclear magnetic resonance
photoelectron spectroscopy
solid state
Lithium Chloride
lithium chlorides
nuclear magnetic resonance
Magic angle spinning
cotton
Acetone
scattering
metal spinning

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Solid structure of native celluloses from different origins and their solubility in LiCl/amide systems. / Ishii, Daisuke; Tatsumi, Daisuke; Aono, Hajime; Tamai, Nobutake; Matsumoto, Takayoshi.

In: Zairyo/Journal of the Society of Materials Science, Japan, Vol. 59, No. 4, 01.04.2010, p. 273-278.

Research output: Contribution to journalArticle

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