Electrical Conductivity and Viscosity in Binary Organic Liquid Mixtures: Participation of Molecular Interactions and Nanodomains
Abstract
:1. Introduction
1.1. Electrical Conduction in Non-Aqueous Liquids
1.2. Evidence for Liquid Nanostructure
2. Materials and Methods
2.1. Materials
2.2. Methods
3. Results
3.1. Properties of the Liquids
3.2. Dynamic Viscosity of Binary Mixtures
3.3. Dielectric and Electrical Conductivity Behavior of n-Dodecane/1-Octanol Mixtures
4. Discussion
4.1. Evidence of Molecular Interactions from Mixture Viscosity
4.2. Electrical Conductivity Considerations
4.3. Relationship between Structure and Interactions, Viscosity, and Electrical Conductivity
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Liquid | Electrical Conductivity (S/cm) a | Relative Permittivity | Dynamic Viscosity at 20 s−1 Shear Rate (mPa·s) | Surface Tension (mN/m) |
---|---|---|---|---|
n-Dodecane | 1.10 × 10−14 | 2.01 [54] | 1.41 | 25.4 [54] |
Silicone oil (20 cSt) | 2.47 × 10−14 | 2.73 b | 19.8 | 19.0 [54] |
1-Octanol | 8.51 × 10−9 | 10.3 [54] | 7.50 | 27.1 [54] |
1-Octanoic acid | 6.33 × 10−13 | 2.85 [54] | 5.53 | 31 [55] |
Binary System | Equation (1) | Equation (2) | ||||
---|---|---|---|---|---|---|
η1 (mPa·s) | η2 (mPa·s) | Φ12 | η1 (mPa·s) | η2 (mPa·s) | G12 | |
Dodecane/ octanol | 7.50 | 1.38 | −0.236 | 7.49 | 1.42 | −0.940 |
Silicone oil/ octanol | 7.50 a | 19.6 a | −1.08 a | 12.3 b,c | 19.8 b,c | 0.34 b,c |
Silicone oil/ octanoic acid | 5.63 | 19.8 | −0.621 | b | b | b |
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Taylor, S.E.; Zeng, H. Electrical Conductivity and Viscosity in Binary Organic Liquid Mixtures: Participation of Molecular Interactions and Nanodomains. Colloids Interfaces 2020, 4, 44. https://doi.org/10.3390/colloids4040044
Taylor SE, Zeng H. Electrical Conductivity and Viscosity in Binary Organic Liquid Mixtures: Participation of Molecular Interactions and Nanodomains. Colloids and Interfaces. 2020; 4(4):44. https://doi.org/10.3390/colloids4040044
Chicago/Turabian StyleTaylor, Spencer E., and Huang Zeng. 2020. "Electrical Conductivity and Viscosity in Binary Organic Liquid Mixtures: Participation of Molecular Interactions and Nanodomains" Colloids and Interfaces 4, no. 4: 44. https://doi.org/10.3390/colloids4040044