“Thermodynamic and Interfacial Analysis of Polypropylene Glycol: Dependence of the Gradient Energy Coefficient on Molecular Weight Using Simha–Somcynsky and Cahn–Hilliard Theories” (2026) Central Asian Journal of Medical and Natural Science, 7(1), pp. 703–713. doi:10.51699/cajmns.v7i1.3102.