Tough, Stretchable, and Thermoresponsive Smart Hydrogels
Abstract
:1. Introduction
2. Results and Discussion
2.1. Formation Pathway and Structural Analysis of PVA/TA/PVA-MA-g-PNIPAAm Triple Network Hydrogels
2.2. Mechanical Properties and Self-Healing Properties
2.3. Dynamics of the Network
2.4. Equilibrium Swelling
2.5. Dynamic Swelling Properties
3. Conclusions
4. Materials and Methods
4.1. Materials
4.2. Synthesis of PVA-MA
4.3. Hydrogel Preparation
4.4. Characterization
4.4.1. FT-IR Characterization
4.4.2. Equilibrium Swelling
4.4.3. Length Normalized Swelling Degrees
4.4.4. Scanning Electron Microscopy (SEM)
4.4.5. Mechanical Properties
4.4.6. Rheological Measurements
Supplementary Materials
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
References
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TA content (wt.%) | 0 | 0.25 | 0.50 |
XRD (peak at 19.6°) | |||
Integral value | 74,352 | 69,373 | 67,688 |
peak | 6922 | 6583 | 6049 |
FWHM * (°) | 8.9 | 11.2 | 15.1 |
DSC | |||
Tm (°C) | 226.5 | 223.8 | 221.8 |
ΔHm (J/g) | 22.3 ± 0.3 | 21.6 ± 0.2 | 20.1 ± 0.1 |
crystallinity (%) | 16.3 ± 0.2 | 15.7 ± 0.2 | 14.6 ± 0.1 |
Time (min) | 240–245 | 280–300 |
Deswelling | −0.0072 | −0.0013 |
Swelling | 0.0092 | 0.0029 |
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Luo, Y.; Pauer, W.; Luinstra, G.A. Tough, Stretchable, and Thermoresponsive Smart Hydrogels. Gels 2023, 9, 695. https://doi.org/10.3390/gels9090695
Luo Y, Pauer W, Luinstra GA. Tough, Stretchable, and Thermoresponsive Smart Hydrogels. Gels. 2023; 9(9):695. https://doi.org/10.3390/gels9090695
Chicago/Turabian StyleLuo, Yi, Werner Pauer, and Gerrit A. Luinstra. 2023. "Tough, Stretchable, and Thermoresponsive Smart Hydrogels" Gels 9, no. 9: 695. https://doi.org/10.3390/gels9090695