Interactional study of a polymeric organotin complex in micellar media

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.

GRAPHICAL ABSTRACT

Keywords:

• [(2-Methylpropanoyl)amino] propanoic acid
• electrical conductivity
• micellar
• interaction
• UV–Vis spectroscopy
• tributyltin(IV) derivative

Disclosure statement

No conflict of interest has been declared by the authors.