Exploring the rearrangement of amorphous cellulose model thin films upon heat treatment

The behavior of amorphous cellulose model thin films upon heat treatment is investigated. Upon heat treatment, a structural rearrangement in the films from a featureless to a fibrillar structure is observed which correlates with the regeneration time and total cellulose content as proven by atomic f...

Full description

Saved in:
Bibliographic Details
Published inSoft matter Vol. 8; no. 38; pp. 9807 - 9815
Main Authors Mohan, Tamilselvan, Spirk, Stefan, Kargl, Rupert, Doliška, Aleš, Vesel, Alenka, Salzmann, Ingo, Resel, Roland, Ribitsch, Volker, Stana-Kleinschek, Karin
Format Journal Article
LanguageEnglish
Published 01.01.2012
Subjects
Cellulose
Crystallinity
Heat treatment
Hydrogen bonds
Hydrophobicity
Moisture content
Swelling
Thin films
Online AccessGet full text

Cover

More Information
Summary:The behavior of amorphous cellulose model thin films upon heat treatment is investigated. Upon heat treatment, a structural rearrangement in the films from a featureless to a fibrillar structure is observed which correlates with the regeneration time and total cellulose content as proven by atomic force microscopy and X-ray photoelectron spectroscopy. ATR-IR spectroscopy proves the presence of stronger hydrogen bonds in the heat treated surfaces which originate from a reorganization of the cellulose chains and pore structure. The rearrangement is accompanied with an increased surface hydrophobicity, a reduced swelling capacity and a reduction in the water content of the films. An increase in crystallinity of the films is not observed.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1744-683X
1744-6848
DOI:10.1039/c2sm25911g