A study of density for pullulan/ionic liquid solutions

Hao Hu, Akihiko Takada, Yoshiaki Takahashi

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


Empirical relationships were obtained at temperatures 10-80 °C between density ρ and mass concentration C (wt%) of pullulan, which was used as a standard polymer in aqueous solutions containing two representative ionic liquids, l-butyl-3-methylimidamlium chloride and 1-ethyl-3-methylimidaolimn acetate. Water content effect on ρ was also examined. Pullulan was successfully dissolved into these ionic liquids without degradation, confirmed by the recovered samples. This indicates that pullulan is a suitable standard for ionic liquid soluble polymers. The empirical relationships provide easy conversion of C to concentration c (g/cm.3), which is essential for systematic studies of properties of pullulan in ionic liquids.

Original languageEnglish
Pages (from-to)14-19
Number of pages6
Issue number1
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Surfaces, Coatings and Films
  • Management, Monitoring, Policy and Law


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