Effect of the Cationic Head Group on Cationic Surfactant-Based Surfactant Mediated Gelation (SMG)
Abstract
:1. Introduction
2. Results
2.1. Gelation Tests
2.2. Confirmation of the Hydrogel Structure and Orthogonality
2.3. Sol-Gel Transition Temperature
2.4. Viscoelasticity
3. Discussion
4. Materials and Methods
4.1. Materials
4.2. Sample Preparation
4.3. Gelation Test and Sol-Gel Transition Temperatures
4.4. Optical Microscopy
4.5. Differential Scanning Calorimetry (DSC)
4.6. Rheological Measurements
4.7. SWAXS Measurements
4.8. Ultraviolet-Visible (UV-vis) Spectroscopy
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Conflicts of Interest
Abbreviations
LMG | low-molecular-weight gelator |
SAFiNs | self-assembled fibrillar networks |
12-HOA | 12-hydroxyoctadecanoic acid |
BME | bicontinuous microemulsion |
Lα | lamellar liquid crystal |
SMG | surfactant-mediated gelation |
CTAB | hexadecyltrimethylammonium bromide |
CTAC | hexadecyltrimethylammonium chloride |
CPC | hexadecylpyridinium chloride |
cgc | critical gelation concentration |
SWAXS | small- and wide-angle X-ray scattering |
CMC | critical micellar concentration |
DSC | differential scanning calorimetry |
LVE | linear viscoelastic |
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C12-HOA [wt.%] | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Surfactant 1 | 0.5 | 0.75 | 1.0 | 1.25 | 1.5 | 1.75 | 2.0 | 3.0 | 4.0 | 5.0 |
CTAB | sol | sol | gel | - | gel | - | gel | gel | gel | gel |
CTAC | sol | - | sol | sol | sol | gel | gel | gel | gel | gel |
CPC | sol | - | sol | - | sol | sol | gel | gel | gel | gel |
CMC/mM | α/- | |
---|---|---|
CTAB | 0.91 | 0.28 |
CTAC | 1.32 | 0.42 |
CPC | 0.99 | 0.49 |
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Aramaki, K.; Takimoto, E.; Yamaguchi, T. Effect of the Cationic Head Group on Cationic Surfactant-Based Surfactant Mediated Gelation (SMG). Int. J. Mol. Sci. 2020, 21, 8046. https://doi.org/10.3390/ijms21218046
Aramaki K, Takimoto E, Yamaguchi T. Effect of the Cationic Head Group on Cationic Surfactant-Based Surfactant Mediated Gelation (SMG). International Journal of Molecular Sciences. 2020; 21(21):8046. https://doi.org/10.3390/ijms21218046
Chicago/Turabian StyleAramaki, Kenji, Eriko Takimoto, and Takumi Yamaguchi. 2020. "Effect of the Cationic Head Group on Cationic Surfactant-Based Surfactant Mediated Gelation (SMG)" International Journal of Molecular Sciences 21, no. 21: 8046. https://doi.org/10.3390/ijms21218046