2025, Vol. 6, Issue 1, Part C
Clouding behaviour and thermodynamics investigation of non-ionic surfactant Tween 80 in presence of Polymethacrylic acid (PMA)
Author(s): VB Jadhav and RS Dhivare
Abstract: The introduction of foreign materials to non-surfactants alters the temperature at which clouding happens. In this research, we explored how the non-ionic surfactant Tween 80 interacts with the additive PMA in water, focusing on measuring the cloud points (CP) of both pure Tween-80 and its mixture with PMA. Our findings revealed that as the concentration of Tween-80 rises, the CP of pure Tween-80 actually drops. On the other hand, when Tween-80 is mixed with PMA, the CP rises with a higher concentration of PMA. This suggests that PMA influences the cloud point of Tween-80, indicating that the clouding effect is related to the merging of different micelles. Overall, this study sheds light on how PMA affects the Cloud Point (CP) of Tween-80 at various concentrations. Taking CP as the key temperature for solubility, the researchers have looked into the thermodynamic factors tied to the clouding process (∆G°cl, ∆H°cl, and ∆S°cl) using the Phase Separation Model. This phase separation happens because of interactions between micelles. Our findings show that the clouding process is exothermic, with ∆H°cl being greater than T∆S°cl, indicating that both enthalpy and entropy play a role in this process. This research highlights that clouding is more than just the growth of micelles; it is a significant phenomenon in its own right. The results suggest that there is likely some interaction between polymers and surfactants in water.
DOI: 10.22271/reschem.2025.v6.i1c.241
Pages: 245-248 | Views: 86 | Downloads: 44
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How to cite this article:
VB Jadhav, RS Dhivare. Clouding behaviour and thermodynamics investigation of non-ionic surfactant Tween 80 in presence of Polymethacrylic acid (PMA). J Res Chem 2025;6(1):245-248. DOI: 10.22271/reschem.2025.v6.i1c.241
