Mesoporosity of Delignified Wood Investigated by Water Vapor Sorption.
Journal
ACS omega
ISSN: 2470-1343
Titre abrégé: ACS Omega
Pays: United States
ID NLM: 101691658
Informations de publication
Date de publication:
31 Jul 2019
31 Jul 2019
Historique:
received:
28
03
2019
accepted:
02
07
2019
entrez:
29
8
2019
pubmed:
29
8
2019
medline:
29
8
2019
Statut:
epublish
Résumé
Wood represents a highly suitable biobased scaffold for the development of mechanically robust and functional materials. Its functionalizability can be enhanced by means of delignification, resulting in an increase in porosity due to partial or complete removal of lignin and hemicellulose constituents. In this work, the impact of partial and complete delignification on the mesoporous structure is investigated via water vapor sorption isotherms and deuterium exchange. Pore size distributions of wood samples with five different delignification levels were compared to native wood. The derived pore size distributions at the water swollen state reveal an increase in porosity with decreasing lignin content. However, after complete lignin removal, drying causes a nonreversible collapse of the cell wall, which results in reduced porosity.
Identifiants
pubmed: 31460361
doi: 10.1021/acsomega.9b00862
pmc: PMC6682004
doi:
Types de publication
Journal Article
Langues
eng
Pagination
12425-12431Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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