A kinetic study on the formation of poly(4 aminodiphenylamine)/copper nanocomposite using UV-visible spectroscopy

作者：Thanjam I Starlet; Philips M Francklin; Manisankar P; Lee Kwang Pill; Gopalan A^*

来源：Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy , 2013, 116: 321-330.

DOI：10.1016/j.saa.2013.06.064

• Poly(4-aminodiphenylamine)
• Copper nanoparticles
• Composites
• Morphology
• Kinetics
• Rate constant

The course of the reaction between copper sulfate (CuSO4) and 4-aminodiphenylamine (4ADPA) was monitored by UV-visible spectroscopy in p-toluene sulfonic acid (p-TSA). Formation of poly(4-aminodiphenylamine)/copper nanoparticle composite (P4ADPA/CuNC) was witnessed through the steady increase in absorbance at 410, 580 and %26gt;700 nm. The absorbance at 410 nm as well as %26gt;700 nm are correlated to the amount of P4ADPA/CuNC formation and was subsequently used to determine the rate of formation of P4ADPA/CuNC (R-P4ADPA/CuNC) at any time during the course of the reaction. R-P4ADPA/CuNC shows a first-order dependence on [4ADPA] and a half-order dependence on [CuSO4]. A kinetic rate expression was established between RP4ADPA/CuNC and experimental parameters such as [4ADPA] and [CuSO4]. The rate constant for the formation of P4ADPA/CuNC was 8.98 x 10(-3) mol(-0.5)l(0.5)S(-1). Field emission scanning electron and transmission electron micrographs revealed that the morphology of the P4ADPA/CuNC was influenced by the reaction conditions.

• 出版日期2013-12