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Unusual extraction ...
Unusual extraction and characterization of nanocrystalline cellulose from cellulose derivatives
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- Alves, L. (författare)
- University of Coimbra, Department of Chemistry, Coimbra, Portugal
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- Medronho, B. (författare)
- Faculty of Sciences and Technology, Centre for Mediterranean Bioresources and Food, University of Algarve, Ed. 8, Campus de Gambelas, Faro, Portugal
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- Antunes, F. E. (författare)
- University of Coimbra, Department of Chemistry, Coimbra, Portugal
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- Fernández-García, M. P. (författare)
- IFIMUP and in - Institute of Nanoscience and Nanotechnology, Department of Physics and Astronomy, Faculty of Science, University of Porto, Porto, Portugal
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- Ventura, J. (författare)
- IFIMUP and in - Institute of Nanoscience and Nanotechnology, Department of Physics and Astronomy, Faculty of Science, University of Porto, Porto, Portugal
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- Araújo, J. P. (författare)
- IFIMUP and in - Institute of Nanoscience and Nanotechnology, Department of Physics and Astronomy, Faculty of Science, University of Porto, Porto, Portugal
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- Romano, A. (författare)
- Faculty of Sciences and Technology, Centre for Mediterranean Bioresources and Food, University of Algarve, Ed. 8, Campus de Gambelas, Faro, Portugal
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- Lindman, Björn (författare)
- Mid Sweden University,Lund University,Lunds universitet,Mittuniversitetet,Avdelningen för kemiteknik,Materials Science and Engineering, Nanyang Technological University, Singapore, Singapore,FSCN,Fysikalisk kemi,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Physical Chemistry,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH
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University of Coimbra, Department of Chemistry, Coimbra, Portugal Faculty of Sciences and Technology, Centre for Mediterranean Bioresources and Food, University of Algarve, Ed 8, Campus de Gambelas, Faro, Portugal (creator_code:org_t)
- Elsevier BV, 2015
- 2015
- Engelska.
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Ingår i: Journal of Molecular Liquids. - : Elsevier BV. - 0167-7322 .- 1873-3166. ; 210, s. 106-112
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Abstract
Ämnesord
Stäng
- Unlike many nanomaterials, nanocrystalline cellulose (CNC) is not synthesized from molecular or atomic components but rather extracted from naturally occurring cellulose. Undoubtedly, the exploitation of CNCs will become a bridge between nanoscience and natural resource products, which could play a major role in reviving the forest industry. In this work, CNC was successfully extracted from unusual sources, hydroxypropyl methylcellulose (HPMC) and carboxymethylcellulose (CMC). The extracted crystallites were purified and further characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM), X-ray powder diffraction (XRD) and dynamic light scattering (DLS). The average size of the CNCs extracted from HPMC and CMC was found to be less (and with lower zeta potential) than the ones extracted from microcrystalline cellulose (MCC). On the other hand, FTIR and XRD revealed that native HPMC and CMC are unexpectedly highly crystalline and hence can be used as a source for CNCs. © 2014 Elsevier B.V.All rights reserved.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Carboxymethyl cellulose
- Cellulose derivatives
- Hydroxypropyl methylcellulose
- Nanocrystals
- Nanocrystals
- Cellulose derivatives
- Hydroxypropyl methylcellulose
- Carboxymethyl cellulose
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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