Cellulose aero-, cryo- and xerogels: towards understanding of morphology control

Highly porous, lightweight versatile cellulose materials were prepared via dissolution–coagulation and subsequent various drying routes. Cellulose was dissolved in ionic liquid/DMSO mixture and coagulation was performed in ethanol. The as prepared wet precursors were used to make materials with thre...

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Bibliographic Details
Published inCellulose (London) Vol. 23; no. 4; pp. 2585 - 2595
Main Authors Buchtová, Nela, Budtova, Tatiana
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.08.2016
Springer Nature B.V
Springer Verlag
Subjects
Bioorganic Chemistry
Cellulose
Ceramics
Chemistry
Chemistry and Materials Science
Coagulation
Composites
Drying
Engineering Sciences
Ethanol
Glass
Ionic liquids
Morphology
Natural Materials
Organic Chemistry
Original Paper
Physical Chemistry
Polymer Sciences
Porosity
Porous materials
Sustainable Development
Xerogels
drying
Morphology
Cellulose
Specific surface area
Porosity
Freeze-drying
Supercritical CO
Cellulose , Freeze-drying , Supercritical CO2 drying , Morphology , Specific surface area , Porosity
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Summary:Highly porous, lightweight versatile cellulose materials were prepared via dissolution–coagulation and subsequent various drying routes. Cellulose was dissolved in ionic liquid/DMSO mixture and coagulation was performed in ethanol. The as prepared wet precursors were used to make materials with three different drying methods: supercritical CO 2 drying, freeze-drying and vacuum drying. The influence of cellulose concentration and drying method on the density, porosity, specific surface area and morphology of cellulose materials is presented and discussed. We provide the understanding of morphology development as a function of processing conditions and give the “recipes” for porosity control.
ISSN:0969-0239
1572-882X
DOI:10.1007/s10570-016-0960-8