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Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers

Inks for 3D printing were prepared by dispersing bacterial cellulose nanofibers (CNF) functionalized with methacrylate groups in a polymerizable deep eutectic solvent (DES) based on choline chloride and acrylic acid with water as a cosolvent. After 3D printing and UV-curing, the double-network compo...

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Autores principales: Prosvirnina, Angelina P., Bugrov, Alexander N., Bobrova, Natalya V., Sivtsov, Eugene V., Nikolaeva, Alexandra L., Kamalov, Almaz M., Sokolova, Maria P., Smirnov, Michael A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10490119/
https://www.ncbi.nlm.nih.gov/pubmed/37688173
http://dx.doi.org/10.3390/polym15173547
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author Prosvirnina, Angelina P.
Bugrov, Alexander N.
Bobrova, Natalya V.
Sivtsov, Eugene V.
Nikolaeva, Alexandra L.
Kamalov, Almaz M.
Sokolova, Maria P.
Smirnov, Michael A.
author_facet Prosvirnina, Angelina P.
Bugrov, Alexander N.
Bobrova, Natalya V.
Sivtsov, Eugene V.
Nikolaeva, Alexandra L.
Kamalov, Almaz M.
Sokolova, Maria P.
Smirnov, Michael A.
author_sort Prosvirnina, Angelina P.
collection PubMed
description Inks for 3D printing were prepared by dispersing bacterial cellulose nanofibers (CNF) functionalized with methacrylate groups in a polymerizable deep eutectic solvent (DES) based on choline chloride and acrylic acid with water as a cosolvent. After 3D printing and UV-curing, the double-network composite gel consisting of chemically and physically crosslinked structures composed from sub-networks of modified CNF and polymerized DES, respectively, was formed. The rheological properties of inks, as well as mechanical and shape memory properties of the 3D-printed gels, were investigated in dynamic and static modes. It was shown that the optimal amount of water allows improvement of the mechanical properties of the composite gel due to the formation of closer contacts between the modified CNF. The addition of 12 wt% water results in an increase in strength and ultimate elongation to 11.9 MPa and 300%, respectively, in comparison with 5.5 MPa and 100% for an anhydrous system. At the same time, the best shape memory properties were found for an anhydrous system: shape fixation and recovery coefficients were 80.0 and 95.8%, respectively.
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spelling pubmed-104901192023-09-09 Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers Prosvirnina, Angelina P. Bugrov, Alexander N. Bobrova, Natalya V. Sivtsov, Eugene V. Nikolaeva, Alexandra L. Kamalov, Almaz M. Sokolova, Maria P. Smirnov, Michael A. Polymers (Basel) Article Inks for 3D printing were prepared by dispersing bacterial cellulose nanofibers (CNF) functionalized with methacrylate groups in a polymerizable deep eutectic solvent (DES) based on choline chloride and acrylic acid with water as a cosolvent. After 3D printing and UV-curing, the double-network composite gel consisting of chemically and physically crosslinked structures composed from sub-networks of modified CNF and polymerized DES, respectively, was formed. The rheological properties of inks, as well as mechanical and shape memory properties of the 3D-printed gels, were investigated in dynamic and static modes. It was shown that the optimal amount of water allows improvement of the mechanical properties of the composite gel due to the formation of closer contacts between the modified CNF. The addition of 12 wt% water results in an increase in strength and ultimate elongation to 11.9 MPa and 300%, respectively, in comparison with 5.5 MPa and 100% for an anhydrous system. At the same time, the best shape memory properties were found for an anhydrous system: shape fixation and recovery coefficients were 80.0 and 95.8%, respectively. MDPI 2023-08-26 /pmc/articles/PMC10490119/ /pubmed/37688173 http://dx.doi.org/10.3390/polym15173547 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Prosvirnina, Angelina P.
Bugrov, Alexander N.
Bobrova, Natalya V.
Sivtsov, Eugene V.
Nikolaeva, Alexandra L.
Kamalov, Almaz M.
Sokolova, Maria P.
Smirnov, Michael A.
Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers
title Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers
title_full Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers
title_fullStr Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers
title_full_unstemmed Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers
title_short Three-Dimensional Printed Shape Memory Gels Based on a Structured Disperse System with Hydrophobic Cellulose Nanofibers
title_sort three-dimensional printed shape memory gels based on a structured disperse system with hydrophobic cellulose nanofibers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10490119/
https://www.ncbi.nlm.nih.gov/pubmed/37688173
http://dx.doi.org/10.3390/polym15173547
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