title: A kinetic study on the formation of poly(4 aminodiphenylamine)/copper nanocomposite using UV-visible spectroscopy.
abstract: 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 >700 nm. The absorbance at 410 nm as well as >700 nm are correlated to the amount of P4ADPA/CuNC formation and was subsequently used to determine the rate of formation of P4ADPA/CuNC (RP4ADPA/CuNC) at any time during the course of the reaction. RP4ADPA/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 × 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.
authors: Department of Industrial Chemistry, Alagappa University, Karaikudi, India.
authors: I
authors: I
authors: Starlet Thanjam
authors: M
authors: M
authors: Francklin Philips
authors: P
authors: P
authors: Manisankar
authors: Kwang-Pill
authors: KP
authors: Lee
authors: A
authors: A
authors: Gopalan
mesh_terms: D001557:Benzenesulfonates / Q000737:chemistry; D003300:Copper / Q000737:chemistry*; D019327:Copper Sulfate / Q000737:chemistry; D007700:Kinetics; D053761:Nanocomposites / Q000737:chemistry*; D010655:Phenylenediamines / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D001557:Benzenesulfonates; D010655:Phenylenediamines; D011108:Polymers; C031506:4-aminodiphenylamine; D003300:Copper; D019327:Copper Sulfate; C029501:4-toluenesulfonic acid
keywords: Composites; Copper nanoparticles; Kinetics; Morphology; Poly(4-aminodiphenylamine); Rate constant