Hussain A. Badran, Nadia A. Hussein Al-Assady, Harith A. Hasan, Riyadh Ch. Abul-Hail, Raeed K. Al-Fahed
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引用次数: 0
Abstract
In this study, the compound polyaniline (PANI) with three different concentrations of (H2SO4) sulfuric acid has been synthesized by the chemical polymerization method and characterized by FTIR spectrophotometer to detect effective group, field emission scanning electron microscopy (FE-SEM) and UV‒Vis absorption spectroscopic. They performed a differential calorimetric scan to describe the behavior of the compound as it measures the thermal energy that circulates from or to the polymer reported. The endo-thermic transition, due to structural adjustment, is a characteristic of the PANI. Casting has been a suitable method for preparing PANI films on FTO glass. The third order non-linear optical (NLO) properties of thin films were investigated using the Z-scan technique. The experimental data recorded resulted in the calculation of the nonlinear optical absorption coefficient, the nonlinear refractive index. PANI at various concentrations of sulfuric acid has a significant optical nonlinearity. Such material could expect new photon applications. The polymer samples with different concentrations exhibits high nonlinear reflective index under continuous wave laser at the experimental wavelength. Reverse saturable absorption is the dominating mechanism for the observed absorption nonlinearities. Therefore, compound polyaniline emerges as a potential candidate for photonic device applications. The synthesized thin film structures of PANI with three different concentrations of (H2SO4) sulfuric acid shows the response to NH3 gas sensing in the range 20–250 ppm and can be used for NH3 sensing application.
期刊介绍：
Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed
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