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Measurement of interaction forces between lignin and cellulose as a function of aqueous electrolyte solution conditions.
Australian National University, Canberra, Australia.
Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.ORCID iD: 0000-0003-3407-7973
2006 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 22, no 26, 11199-11204 p.Article in journal (Refereed) Published
Abstract [en]

The interaction between a lignin film and cellulose sphere has been measured using the colloidal probe force technique as a function of aqueous electrolyte solution conditions. The lignin film was first studied for its roughness and stability using atomic force microscopy imaging and quartz crystal microbalance measurements respectively. The film was found to be smooth and stable in the pH range of 3.5 to 9 and in ionic strengths up to and including 0.01 M. This range of ionic strength and pH was hence used to measure the surface forces profiles between lignin and cellulose. Under these solution conditions, the measured forces behaved according to DLVO theory. The force-distance curves could be fitted between the limits of constant charge and constant potential and the surface potential of the lignin films was determined as a function of pH. At pH greater than 9.5, a short range steric repulsion was observed indicating that the film was swelling to a large extent but did not dissolve. Thus, lignin films prepared in this manner are suitable for a range of surface forces studies.

Place, publisher, year, edition, pages
2006. Vol. 22, no 26, 11199-11204 p.
Keyword [en]
Lignin, cellulose, model films, spin-coating, colloidal probe, surface forces, Poisson-Boltzmann cell model, DLVO theory
National Category
Chemical Engineering
Identifiers
URN: urn:nbn:se:miun:diva-3923DOI: 10.1021/la0618566ISI: 000242771200053Scopus ID: 2-s2.0-33846402086Local ID: 4301OAI: oai:DiVA.org:miun-3923DiVA: diva2:28955
Available from: 2008-09-30 Created: 2008-09-30 Last updated: 2016-10-03Bibliographically approved

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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
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  • text
  • asciidoc
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