Aerocellulose: New Highly Porous Cellulose Prepared from Cellulose−NaOH Aqueous Solutions
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- 18 December 2007
- journal article
- research article
- Published by American Chemical Society (ACS) in Biomacromolecules
- Vol. 9 (1), 269-277
- https://doi.org/10.1021/bm700972k
Abstract
New highly porous pure cellulose aerogel-like material called “aerocellulose” was prepared from aqueous cellulose/NaOH solutions. Solutions were gelled to obtain shaped three-dimensional objects, then cellulose was regenerated and dried in supercritical conditions using CO2. The porosity of aerocellulose is higher than 95% with pore sizes distribution from a few tens of nanometers to a few tens of micrometers. The internal specific surface area is around 200–300 m2/g, and density ranges from 0.06 to 0.3 g/cm3, depending on the preparation conditions. The influence of cellulose DP and concentration, of the addition of a surfactant leading to solution foaming, of gelation conditions and the temperature and acidity of regenerating bath on the morphology of aerocellulose has been studied. The results are compared with another type of aerocellulose that was prepared from cellulose/NMMO solutions.Keywords
This publication has 28 references indexed in Scilit:
- Structure of Aqueous Solutions of Microcrystalline Cellulose/Sodium Hydroxide below 0 °C and the Limit of Cellulose DissolutionBiomacromolecules, 2007
- Swelling and Dissolution of Cellulose Part II: Free Floating Cotton and Wood Fibres in NaOH–Water–Additives SystemsMacromolecular Symposia, 2006
- Aerocellulose: Aerogels and Aerogel‐like Materials made from CelluloseMacromolecular Symposia, 2006
- Preparation and Properties of Bacterial Cellulose AerogelKOBUNSHI RONBUNSHU, 2006
- Three-dimensional aqueous-derived biomaterial scaffolds from silk fibroinBiomaterials, 2005
- Rheological Properties and Gelation of Aqueous Cellulose−NaOH SolutionsBiomacromolecules, 2003
- Crystallisation of cellulose/N-methylmorpholine-N-oxide hydrate solutionsPolymer, 2002
- Thermogelation of methylcellulose: rheological considerationsPolymer, 2000
- Solubility of bacterial cellulose and its structural propertiesJournal of Applied Polymer Science, 1998
- Production of New Cellulosic Filament Spun from Cellulose/aqueous NaOH Solution. (Part 1). Industrial Preparation Method of Cellulose-Alkali Dope with High Solubility.Sen'i Gakkaishi, 1996