Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
A model system to study esterification reactions in cellulosic or lignocellulosic material
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Träteknologi.ORCID-id: 0000-0002-7711-9267
2007 (Engelska)Ingår i: Journal of Pulp and Paper Science (JPPS), ISSN 0826-6220, Vol. 33, nr 4, s. 177-183Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The formation of natural ester cross-linkages in cellulosic or lignocellulosic composite materials during drying and heating is of interest for the production of paper and of wood composite boards and in giving cotton materials improved characteristics. A model system has been developed to study quantitatively the esterification of cellulosic material during drying and heating when solid-state conditions can be said to predominate. In the experiments, hexanoic acid and 3-hydroxybutyric acid were added to ordinary filter paper. Moisture content was adjusted, and samples were heated to temperatures ranging from 85 degrees C to 180 degrees C for between 15 and 45 minutes. Quantitative analysis of ester,formation, in this case between the monocarboxylic acids and the cellulose's hydroxyl groups, was performed using aminolysis/gas chromatography. The 3-hydroxybutyric acid was surprising v effective in ester formation. The results indicate that direct esterification of monocarboxylic acid can be an important reaction in lignocellulosic material at elevated temperatures.

Ort, förlag, år, upplaga, sidor
2007. Vol. 33, nr 4, s. 177-183
Nationell ämneskategori
Biomaterial
Forskningsämne
Träfysik
Identifikatorer
URN: urn:nbn:se:ltu:diva-14383Lokalt ID: dbc09e30-0a2e-11dd-ae49-000ea68e967bOAI: oai:DiVA.org:ltu-14383DiVA, id: diva2:987338
Anmärkning
Validerad; 2007; 20080414 (pafi)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2017-11-24Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Personposter BETA

Pantze, AnnaKarlsson, OlovWestermark, Ulla

Sök vidare i DiVA

Av författaren/redaktören
Pantze, AnnaKarlsson, OlovWestermark, Ulla
Av organisationen
Träteknologi
I samma tidskrift
Journal of Pulp and Paper Science (JPPS)
Biomaterial

Sök vidare utanför DiVA

GoogleGoogle Scholar

urn-nbn

Altmetricpoäng

urn-nbn
Totalt: 68 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf