Abstract
In this manuscript, a study on interactions of a polymeric derivative of Tributyltin(IV) with [(2-Methylpropanoyl)amino]propanoic acid (TMP) in micellar media is presented. The study was conducted using two surfactants viz. Sodium 2-ethylhexylsulphate (SES) and Cetyltrimethylammonium bromide (CTAB). The solubilization parameters in terms of partition constant (K c ), partition coefficient (K x ), binding constant (K b ), Gibb’s free energy of partition (ΔG p ), and binding (ΔG b ) were investigated by UV–Visible spectrophotometer. The estimation of micellization thermodynamics including entropy (ΔS m ), enthalpy (ΔH m ), and Gibb’s free energy (ΔG m ) were determined conductometrically. The compound showed more interaction with the cationic surfactant as compared to anionic participating surfactant due to comparative electrostatic interactions. The partition coefficient (K x ) in the micellar media of CTAB was significantly higher (4.22 × 107) than SES media (1.33 × 105). The Gibb’s free energies of partition. Binding and micellization were higher in CTAB as compared to SES.
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