Tuning the Porosity, Water Interaction, and Redispersion of Nanocellulose Hydrogels by Osmotic Dehydration

Guccini, Valentina; Phiri, Josphat; Trifol, Jon; Rissanen, Ville; Mousavi, Seyede Maryam; Vapaavuori, Jaana; Tammelin, Tekla; Maloney, Thaddeus; Kontturi, Eero

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Tuning the Porosity, Water Interaction, and Redispersion of Nanocellulose Hydrogels by Osmotic Dehydration

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Title:	Tuning the Porosity, Water Interaction, and Redispersion of Nanocellulose Hydrogels by Osmotic Dehydration
Author(s):	Guccini, Valentina ; Phiri, Josphat ; Trifol, Jon ; Rissanen, Ville ; Mousavi, Seyede Maryam ; Vapaavuori, Jaana ; Tammelin, Tekla ; Maloney, Thaddeus ; Kontturi, Eero
Date:	2022-01-14
Language:	en
Pages:	5
Department:	Materials Chemistry of Cellulose Bio-based Materials Polymer technology VTT Technical Research Centre of Finland Multifunctional Materials Design Department of Bioproducts and Biosystems Department of Chemical and Metallurgical Engineering Department of Chemistry and Materials Science
Series:	ACS Applied Polymer Materials
ISSN:	2637-6105
DOI-number:	10.1021/acsapm.1c01430
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This publication is imported from Aalto University Research information portal: https://research.aalto.fi > View this publication in Research information portal > Other link related to publication (Research information portal) > View/Open full text file from Research information portal
Citation: Guccini , V , Phiri , J , Trifol , J , Rissanen , V , Mousavi , S M , Vapaavuori , J , Tammelin , T , Maloney , T & Kontturi , E 2022 , ' Tuning the Porosity, Water Interaction, and Redispersion of Nanocellulose Hydrogels by Osmotic Dehydration ' , ACS Applied Polymer Materials , vol. 4 , no. 1 , pp. 24-28 . https://doi.org/10.1021/acsapm.1c01430
Abstract: Osmotic dehydration (OD) was introduced as a method to reproducibly tune the water content and porosity of cellulose nanofiber (CNF) hydrogels. The hierarchical porosity was followed by electron microscopy (pores with a >100 μm diameter) and thermoporosimetry (mesopores), together with mechanical testing, in hydrogels with solid contents ranging from 0.7 to 12 wt %. Furthermore, a reciprocal correlation between proton conductivity and the ratio of water bound to the nanocellulose network was established, suggesting the potential of these systems toward tunable energy materials.

Description: \| openaire: EC/H2020/899576/EU//FuturoLEAF \| openaire: EC/H2020/949648/EU//ModelCom V.G. and E.K. would like to acknowledge the Academy of Finland (AoF) for the Financial support by the Project AlgaLEAF (Project 322755). V.R. and T.T. would like to acknowledge the European Union via the project FuturoLEAF (European Union’s Horizon 2020 research and innovation programme under grant agreement no. 899576). J.P. and T.M. would like to acknowledge the Foundation for Research of Natural Resources in Finland. M.M. and J.V. would like to acknowledge the European Commission for generous funding for the ModelCom project. J.T. would like to acknowledge the AoF’s Flagship Programme, Projects . 318890 and 318891 (Competence Center for Materials Bioeconomy, FinnCERES). This work utilized facilities provided by the RawMatters Finland Infrastructure (RAMI) at Aalto University, supported by AoF, and the facilities and technical support of the OtaNano Nanomicroscopy Center (Aalto-NMC).
Permanent link to this item: http://urn.fi/URN:NBN:fi:aalto-202201101056 Email this Export to RefWorks QR Code Print BibTex Tweet