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Journal articles
Plant Cell wall inspired Xyloglucan/Cellulose Nanocrystals Aerogels Produced By Freeze-Casting
Z. Jaafar
1
B. Quelennec
1
C. Moreau
1
D. Lourdin
1
J.E. Maigret
1
B. Pontoire
1
A. D’orlando
1
T. Coradin
2
B. Duchemin
3
F.M. Fernandes
2
B. Cathala
1, *
J.E. E Maigret 1
Author
B. Pontoire 1
Author
A. D’orlando 1
Author
T. Coradin 2
Mail :
Author IdHAL : thibaud-coradin ORCID : https://orcid.org/0000-0003-3374-5722
1
BIA - Unité de recherche sur les Biopolymères, Interactions Assemblages (Site de la Géraudière - BP 71627 - 44316 Nantes Cedex 3 - France)
2
LCMCP - Laboratoire de Chimie de la Matière Condensée de Paris (11 place Marcelin Berthelot 75231 Paris Cedex 05 - France)
- CdF - Collège de France (France)
- SU - Sorbonne Université (21 rue de l’École de médecine - 75006 Paris - France)
- CNRS - Centre National de la Recherche Scientifique : UMR7574 (France)
3
LOMC - Laboratoire Ondes et Milieux Complexes (53 rue de Prony
76058 Le Havre Cedex - France)
- CNRS - Centre National de la Recherche Scientifique : UMR6294 (France)
- ULH - Université Le Havre Normandie (25 rue Philippe Lebon - BP 1123 - 76063 Le Havre Cedex France - France)
- NU - Normandie Université (Esplanade de la Paix - CS 14032 - 14032 Caen Cedex 5 - France)
Abstract : Cellulose nanocrystals (CNC) and xyloglucan (XG) were used to construct new aerogels inspired by the hierarchical organization of wood tissue, i.e., anisotropic porous cellular solid with pore walls containing oriented and stiff cellulose nanorods embedded in hemicellulose matrix. Aerogels with oriented or disordered pores were prepared by directional and non-directional freeze-casting from colloidal dispersions of XG and CNC at different ratios. XG addition induced a clear improvement of the mechanical properties compared to the CNC aerogel, as indicated by the Young modulus increase from 138 kPa to 610 kPa. The addition of XG changed the pore morphology from lamellar to alveolar and it also decreased the CNC orientation (the Hermans’ orientation factor was 0.52 for CNC vs 0.36−0.40 for CNC-XG). The aerogels that contained the highest proportion of XG also retained their structural integrity in water without any chemical modification. These results open the route to biobased water-resistant materials by an easy and green strategy based on polymer adsorption rather than chemical crosslinking.
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Journal articles
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https://hal.sorbonne-universite.fr/hal-02887173
Contributor : Hal Sorbonne Université Gestionnaire <>
Submitted on : Thursday, July 2, 2020 - 9:01:43 AM
Last modification on : Tuesday, July 21, 2020 - 3:14:42 AM
Contributor : Hal Sorbonne Université Gestionnaire <>
Submitted on : Thursday, July 2, 2020 - 9:01:43 AM
Last modification on : Tuesday, July 21, 2020 - 3:14:42 AM
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Identifiers
- HAL Id : hal-02887173, version 1
- DOI : 10.1016/j.carbpol.2020.116642
Collections
SORBONNE-UNIVERSITE | LCMCP | LCMCP-MATBIO | CDF | SU-SCIENCES | INC-CNRS | COMUE-NORMANDIE | UNILEHAVRE | LOMC | CNRS | INRAE | AMIDEX
Citation
Z. Jaafar, B. Quelennec, C. Moreau, D. Lourdin, J.E. Maigret, et al.. Plant Cell wall inspired Xyloglucan/Cellulose Nanocrystals Aerogels Produced By Freeze-Casting. Carbohydrate Polymers, Elsevier, 2020, 247, pp.116642. ⟨10.1016/j.carbpol.2020.116642⟩. ⟨hal-02887173⟩
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