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Zhang Q, He C, Zhang D, Jiang W, Zhang H, Zhang W. Phase behavior of the sodium lauryl glutamate: effects of the temperature and concentration. TENSIDE SURFACT DET 2022. [DOI: 10.1515/tsd-2021-2399] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Abstract
The physical and chemical properties of sodium lauryl glutamate were systematically investigated in this work. To determine the critical micelle concentration (CMC) of sodium lauryl glutamate, the surface tension was measured using the Wilhelmy plate method. The Krafft point was determined using the ultraviolet/visible spectrophotometer. The effect of pH on the solute in the solution was studied using potentiometric titration. The critical packing parameter (CPP) and Gibbs free energy (ΔG) of micelle formation were calculated using the corresponding parameters. The temperature-concentration phase diagram of sodium lauryl glutamate was constructed using the dynamic light scattering system (DLS) and polarised optical microscopy (POM). The calculated theoretical data were combined with the actual observed data from the phase diagram. Finally, the phase behaviour of sodium lauryl glutamate was determined.
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Affiliation(s)
- Qianjie Zhang
- International School of Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
| | - Chenghao He
- International School of Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
| | - Dongmei Zhang
- International School of Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
| | - Wen Jiang
- International School of Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
| | - Huiwen Zhang
- Shanghai Kangyue Chemical Technology Co., LTD , Shanghai 201107 , P. R. China
| | - Wanping Zhang
- International School of Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
- Collaborative Innovation Center of Fragrance Flavour and Cosmetics, Shanghai Institute of Technology , Shanghai 201418 , P. R. China
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