Change search
ReferencesLink to record
Permanent link

Direct link
Carboxymethylated spruce galactoglucomannans: preparation, characterisation, dispersion stability, water-in-oil emulsion stability, and sorption on cellulose surface
KTH, School of Biotechnology (BIO).
Show others and affiliations
2011 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, Vol. 26, no 2, 167-178 p.Article in journal (Refereed) Published
Abstract [en]

Natively acetylated galactoglucomannans (GGMs) is the main hemicellulose type in most softwood species and can be utilised as, for example, bioactive polymers, hydrocolloids, papermaking chemicals, or coating polymers. In this study, carboxymethylated GGMs (CM-GGMs) were prepared and characterised by GC-MS, H-1 and C-13 NMR and FTIR spectroscopy, and SEC-MALLS. The thermal stability of the products was investigated by DSC-TGA. The accessibility of different C-positions in mannose and glucose was investigated. The emulsion stability of CM-GGMs in resin dispersion was studied and it was shown that CM-GGMs can stabilise the resin dispersion also in presence of CaCl2. The possibility of using CM-GGMs as emulsifiers in water-in-oil emulsions was assessed. A CM-GGM with a DS value of 0.25 at a concentration higher than 3% performed the best. Finally, the study of sorption of CM-GGM onto cellulose surface exhibited a decrease in binding ability with an increase in the degree of substitution (DS).

Place, publisher, year, edition, pages
2011. Vol. 26, no 2, 167-178 p.
National Category
Materials Engineering
URN: urn:nbn:se:kth:diva-35120ISI: 000291334400001ScopusID: 2-s2.0-79958763002OAI: diva2:426551
QC 20100623Available from: 2011-06-23 Created: 2011-06-20 Last updated: 2011-06-23Bibliographically approved

Open Access in DiVA

No full text


Search in DiVA

By author/editor
Xu, Chunlin
By organisation
School of Biotechnology (BIO)
In the same journal
Nordic Pulp & Paper Research Journal
Materials Engineering

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 134 hits
ReferencesLink to record
Permanent link

Direct link