Dissolution and recovery of cellulose from 1-butyl-3-methylimidazolium chloride in presence of water

Masayuki Iguchi, Taku Michael Aida, Masaru Watanabe, Richard L. Smith

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

The dissolution and recovery of microcrystalline cellulose from 1-butyl-3-methylimidazolium chloride, [bmIm][Cl], were studied. At 90 °C and 5 h dissolution time, the regenerated cellulose could be recovered above 80 wt% with a less than 10% decrease in the value of the viscosity-average degree of polymerization, DPv, regardless of water content. Recovery ratio and DPv of regenerated cellulose at 120 °C decreased with time regardless of water content. The regenerated cellulose after dissolution at 120 °C for 10 h regardless of water content had cellulose II structure. Regenerated cellulose at short dissolution times or low temperature had high amorphous content. Both [bmIm][Cl] and [bmIm][Cl] with water act as a non-derivatizing solvent for microcrystalline cellulose at 90 °C, and as a derivatizing solvent at 120 °C. The main effect of added water on the dissolution of cellulose at high temperature was the promotion of cello-oligosaccharide and levoglucosan formation.

Original languageEnglish
Pages (from-to)651-658
Number of pages8
JournalCarbohydrate Polymers
Volume92
Issue number1
DOIs
Publication statusPublished - 2013 Jan 30

Keywords

  • Cellulose
  • Cellulose II
  • Degree of polymerization
  • Ionic liquid
  • Water

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Dissolution and recovery of cellulose from 1-butyl-3-methylimidazolium chloride in presence of water'. Together they form a unique fingerprint.

  • Cite this