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.

摘要

在这份手稿中，介绍了胶束介质中三丁基锡 (IV) 的聚合衍生物与 [(2-甲基丙酰基) 氨基] 丙酸 (TMP) 的相互作用的研究。该研究是使用两种表面活性剂进行的，即。2-乙基己基硫酸钠 (SES) 和十六烷基三甲基溴化铵 (CTAB)。通过紫外可见分光光度计研究了分配常数 (K _c )、分配系数 (K _x )、结合常数 (K _b )、吉布斯分配自由能 (ΔG _p ) 和结合 (ΔG _b ) 方面的增溶参数. 胶束化热力学的估计，包括熵 (ΔS _m )、焓 (ΔH _m ) 和吉布斯自由能 (ΔG _m) 由电导测定法确定。由于比较静电相互作用，与阴离子参与表面活性剂相比，该化合物显示出与阳离子表面活性剂更多的相互作用。CTAB 胶束介质中的分配系数 (K _x ^{) (4.22 × 10 7} ) 显着高于 SES 介质 (1.33 × 10 ⁵ )。Gibb 的分配自由能。与 SES 相比，CTAB 中的结合和胶束化更高。