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Triple network hydrogels (TN gels) prepared by a one-pot, two-step method with high mechanical properties
In this work, poly(vinyl alcohol) (PVA) was incorporated into the networks of polyacrylamide/polyacrylic acid (PAM/PAA) to prepare novel PAM/PAA/PVA Triple-network (TN) hydrogels by an in situ polymerization and repeated freezing–thawing (F–T) process. The TN hydrogels have not only high mechanical...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078323/ https://www.ncbi.nlm.nih.gov/pubmed/35540340 http://dx.doi.org/10.1039/c7ra13360j |
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author | Wang, Xiangong Zhao, Fang Pang, Bo Qin, Xuping Feng, Shengyu |
author_facet | Wang, Xiangong Zhao, Fang Pang, Bo Qin, Xuping Feng, Shengyu |
author_sort | Wang, Xiangong |
collection | PubMed |
description | In this work, poly(vinyl alcohol) (PVA) was incorporated into the networks of polyacrylamide/polyacrylic acid (PAM/PAA) to prepare novel PAM/PAA/PVA Triple-network (TN) hydrogels by an in situ polymerization and repeated freezing–thawing (F–T) process. The TN hydrogels have not only high mechanical strength, but also a moderate swelling ability by varying the weight ratio of calcium chloride (CaCl(2)) and PVA and free shaping. The compressive stress of the as-prepared hydrogels could reach 11 MPa, and the highest stretching stress could reach 0.8 MPa. Upon mechanical loading, the coordination network between PAA and CaCl(2) served as sacrificial bonds to efficiently dissipate energy. However, they can reform when the mechanical load is released, resulting from the fast coordination between PAA and Ca(2+). Therefore, TN hydrogels have potential application in biomaterials. |
format | Online Article Text |
id | pubmed-9078323 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90783232022-05-09 Triple network hydrogels (TN gels) prepared by a one-pot, two-step method with high mechanical properties Wang, Xiangong Zhao, Fang Pang, Bo Qin, Xuping Feng, Shengyu RSC Adv Chemistry In this work, poly(vinyl alcohol) (PVA) was incorporated into the networks of polyacrylamide/polyacrylic acid (PAM/PAA) to prepare novel PAM/PAA/PVA Triple-network (TN) hydrogels by an in situ polymerization and repeated freezing–thawing (F–T) process. The TN hydrogels have not only high mechanical strength, but also a moderate swelling ability by varying the weight ratio of calcium chloride (CaCl(2)) and PVA and free shaping. The compressive stress of the as-prepared hydrogels could reach 11 MPa, and the highest stretching stress could reach 0.8 MPa. Upon mechanical loading, the coordination network between PAA and CaCl(2) served as sacrificial bonds to efficiently dissipate energy. However, they can reform when the mechanical load is released, resulting from the fast coordination between PAA and Ca(2+). Therefore, TN hydrogels have potential application in biomaterials. The Royal Society of Chemistry 2018-02-12 /pmc/articles/PMC9078323/ /pubmed/35540340 http://dx.doi.org/10.1039/c7ra13360j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Wang, Xiangong Zhao, Fang Pang, Bo Qin, Xuping Feng, Shengyu Triple network hydrogels (TN gels) prepared by a one-pot, two-step method with high mechanical properties |
title | Triple network hydrogels (TN gels) prepared by a one-pot, two-step method with high mechanical properties |
title_full | Triple network hydrogels (TN gels) prepared by a one-pot, two-step method with high mechanical properties |
title_fullStr | Triple network hydrogels (TN gels) prepared by a one-pot, two-step method with high mechanical properties |
title_full_unstemmed | Triple network hydrogels (TN gels) prepared by a one-pot, two-step method with high mechanical properties |
title_short | Triple network hydrogels (TN gels) prepared by a one-pot, two-step method with high mechanical properties |
title_sort | triple network hydrogels (tn gels) prepared by a one-pot, two-step method with high mechanical properties |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9078323/ https://www.ncbi.nlm.nih.gov/pubmed/35540340 http://dx.doi.org/10.1039/c7ra13360j |
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