Tuning the Porosity, Water Interaction, and Redispersion of Nanocellulose Hydrogels by Osmotic Dehydration
| Autor: | Maryam Mousavi, Ville Rissanen, Jon Trifol, Tekla Tammelin, Jaana Vapaavuori, Thaddeus Maloney, Josphat Phiri, Eero Kontturi, Valentina Guccini |
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| Rok vydání: | 2021 |
| Předmět: |
redispersion
Materials science Letter Polymers and Plastics Process Chemistry and Technology Organic Chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Nanocellulose 0104 chemical sciences chemistry.chemical_compound chemistry Chemical engineering Self-healing hydrogels controlled water removal ion conductivity Cellulose Porosity Solid content 0210 nano-technology Osmotic dehydration cellulose nanofibers thermoporosimetry |
| Zdroj: | 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 ACS Applied Polymer Materials |
| ISSN: | 2637-6105 |
| DOI: | 10.1021/acsapm.1c01430 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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