Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Dissolution of cellulose in tetrabutylammonium acetate/dimethyl sulfoxide
RISE - Research Institutes of Sweden, Materials and Production, IVF.ORCID iD: 0000-0003-4765-8224
Lund University, Sweden.
Lund University, Sweden.
RISE - Research Institutes of Sweden, Materials and Production, IVF.ORCID iD: 0000-0002-5212-780x
Show others and affiliations
2016 (English)In: The 7th Workshop on cellulose, regenerated cellulose and cellulose derivatives, 2016, p. 15-18, article id 1Conference paper, Oral presentation with published abstract (Other academic)
Abstract [en]

The dissolution of cellulose in tetrabutylammonium acetate (TBAAc)/dimethyl sulfoxide (DMSO) was studied combining experimental and simulation techniques. It was found that the dissolution limit at 40 °C corresponded to a molar ratio close to one acetate per cellulose anhydroglucose units. MD simulations suggested that the acetate ions bind to cellulose by dual hydrogen bonds. This effectively turns cellulose into a polyelectrolyte, attracting the bulky tetrabutylammonium (TBA+ ) counter ions, which prevent close contact between chains in the dissolved state. This hypothesis was tested by 1 Hand 13C-NMR spectroscopy, which confirmed that acetate forms hydrogen bonds to cellulose, and by diffusion NMR spectroscopy, which demonstrated a strong dynamic correlation between bound acetate and tetrabutylammonium in near-quantitative agreement with simulation. The present results suggest that offering hydrogen bonding to the acetate ions is the main driving force for dissolving cellulose and that the TBA+ counter ions form a diffuse layer around the acetate-decorated cellulose chains.

Place, publisher, year, edition, pages
2016. p. 15-18, article id 1
National Category
Paper, Pulp and Fiber Technology
Identifiers
URN: urn:nbn:se:ri:diva-30217OAI: oai:DiVA.org:ri-30217DiVA, id: diva2:1129610
Conference
7th Workshop on cellulose, regenerated cellulose and cellulose derivatives, November 15-16, 2016, Örnsköldsvik, Sweden
Available from: 2017-08-04 Created: 2017-08-04 Last updated: 2019-06-28Bibliographically approved

Open Access in DiVA

No full text in DiVA

Authority records BETA

Idström, AlexanderOlsson, CarinaKöhnke, Tobias

Search in DiVA

By author/editor
Idström, AlexanderOlsson, CarinaKöhnke, Tobias
By organisation
IVFIVF
Paper, Pulp and Fiber Technology

Search outside of DiVA

GoogleGoogle Scholar

urn-nbn

Altmetric score

urn-nbn
Total: 8 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
v. 2.35.7