scholarly journals An Electroactive Polymer Modified Separator with A Potential Clamp Function

2018 ◽  
Vol 238 ◽  
pp. 05005
Author(s):  
Kaiyue Zhang ◽  
Wei Xiao ◽  
Jianguo Liu ◽  
Chuanwei Yan
Keyword(s):  
Cyclic Voltammetry ◽  
Oxidative Polymerization ◽  
Electroactive Polymer ◽  
Chemical Oxidative Polymerization ◽  
Uniform Coating ◽  
Constant Potential ◽  
Current Densities ◽  
Composite Separator ◽  
Cyclic Voltammetry Test ◽  
Modified Separator

An inexpensive electroactive polymer polytriphenylamine (PTPAn) was synthesized through chemical oxidative polymerization of TPA. The composite separator was simply prepared by impregnating a commercial PP separator with PTPAn polymer solution. PTPAn was observed on the surface of the composite separator and formed a uniform coating. In cyclic voltammetry test, PTPAn polymer exhibited a pair of well-defined redox peaks between 3.0 and 4.5 V, which could be regarded as a reversible electrochemical p-doping and dedoping process. When incorporated in a blocking cell, the composite separator was able to hold a constant potential for current densities up to 5 mA/cm2 to protect the cell from overcharging.

scholarly journals Obtaining conductive composites of PANI and thermoplastic polymers

2019 ◽  
pp. 11-15
Author(s):  
Diana Nelly Contreras-Zarazúa ◽  
David Contreras-Lopéz ◽  
Rosalba Fuentes-Ramirez ◽  
Rosario Galindo-González
Keyword(s):  
Cyclic Voltammetry ◽  
Impedance Spectroscopy ◽  
Vinyl Acetate ◽  
Oxidative Polymerization ◽  
Ammonium Persulfate ◽  
Polymerization Process ◽  
Chemical Oxidative Polymerization ◽  
Thermoplastic Polymers ◽  
Conductive Composites ◽  
Polar Monomer

Currently, the polymers industry has gained increasing importance due to the versatility of its properties. In this work were synthesized copolymers of styrene with vinyl acetate at different concentrations through a process polymerization of suspension, which are the starting points for obtaining of composites with polyaniline synthesized PANI chemical oxidative polymerization process, used for doping HCl at a concentration of 1.5 M and ammonium persulfate 0.5 M in a mass radio of 1:1. The conductivity was evaluated by means of cyclic voltammetry and impedance spectroscopy, in order to determine the effect of the concentration of the polar monomer in the composite founded that increase concentration of polar comonomer the conductivity also too.

scholarly journals Synthesis, characterization and photovoltaic studies of oligo(acriflavine) via chemical oxidative polymerization

RSC Advances ◽  
2017 ◽  
Vol 7 (15) ◽  
pp. 8973-8984 ◽  
Author(s):  
Feyza Kolcu ◽  
İsmet Kaya
Keyword(s):  
Cyclic Voltammetry ◽  
Band Gap ◽  
Energy Levels ◽  
Oxidative Polymerization ◽  
Oxidative Polycondensation ◽  
Chemical Oxidative Polymerization ◽  
Lumo Energy ◽  
Homo Lumo

Oligo(acriflavine) was synthesized via chemical oxidative polycondensation by H2O2 (30%) as the oxidant. Cyclic voltammetry (CV) is an effective method to estimate HOMO–LUMO energy levels and electrochemical (E′g) band gap of the oligomer.

scholarly journals Role of the Anilinium Ion on the Selective Polymerization of Anilinium 2-Acrylamide-2-methyl-1-propanesulfonate

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2349
Author(s):  
Alain Salvador Conejo-Dávila ◽  
Marco Armando Moya-Quevedo ◽  
David Chávez-Flores ◽  
Alejandro Vega-Rios ◽  
Erasto Armando Zaragoza-Contreras
Keyword(s):  
Cyclic Voltammetry ◽  
Optical Properties ◽  
Thermal Properties ◽  
Free Radical ◽  
1H Nmr ◽  
Molecular Interactions ◽  
13C Nmr ◽  
Oxidative Polymerization ◽  
Cyclic Voltammetry Analysis

The development of anilinium 2-acrylamide-2-methyl-1-propanesulfonate (Ani-AMPS) monomer, confirmed by 1H NMR, 13C NMR, and FTIR, is systematically studied. Ani-AMPS contains two polymerizable functional groups, so it was submitted to selective polymerization either by free-radical or oxidative polymerization. Therefore, poly(anilinium 2-acrylamide-2-methyl-1-propanesulfonic) [Poly(Ani-AMPS)] and polyaniline doped with 2-acrylamide-2-methyl-1-propanesulfonic acid [PAni-AMPS] can be obtained. First, the acrylamide polymer, poly(Ani-AMPS), favored the π-stacking of the anilinium group produced by the inter- and intra-molecular interactions and was studied utilizing 1H NMR, 13C NMR, FTIR, and UV-Vis-NIR. Furthermore, poly(Ani-AMPS) fluorescence shows quenching in the presence of Fe2+ and Fe3+ in the emission spectrum at 347 nm. In contrast, the typical behavior of polyaniline is observed in the cyclic voltammetry analysis for PAni-AMPS. The optical properties also show a significant change at pH 4.4. The PAni-AMPS structure was corroborated through FTIR, while the thermal properties and morphology were analyzed utilizing TGA, DSC (except PAni-AMPS), and FESEM.

scholarly journals Chemical Oxidative Polymerization of Methylene Blue: Reaction Mechanism and Aspects of Chain Structure

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2188
Author(s):  
Yaroslav O. Mezhuev ◽  
Igor Y. Vorobev ◽  
Ivan V. Plyushchii ◽  
Efrem G. Krivoborodov ◽  
Alexander A. Artyukhov ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Oxidative Polymerization ◽  
Chain Structure ◽  
Charge Transfer Complexes ◽  
Significant Weight Loss ◽  
Chemical Oxidative Polymerization ◽  
First Order ◽  
Initial Stage ◽  
Blue Reaction ◽  
Heating Up

The kinetic regularities of the initial stage of chemical oxidative polymerization of methylene blue under the action of ammonium peroxodisulfate in an aqueous medium have been established by the method of potentiometry. It was shown that the methylene blue polymerization mechanism includes the stages of chain initiation and growth. It was found that the rate of the initial stage of the reaction obeys the kinetic equation of the first order with the activation energy 49 kJ × mol−1. Based on the proposed mechanism of oxidative polymerization of methylene blue and the data of MALDI, EPR, and IR spectroscopy methods, the structure of the polymethylene blue chain is proposed. It has been shown that polymethylene blue has a metallic luster, and its electrical conductivity is probably the result of conjugation over extended chain sections and the formation of charge transfer complexes. It was found that polymethylene blue is resistant to heating up to a temperature of 440 K and then enters into exothermic transformations without significant weight loss. When the temperature rises above 480 K, polymethylene blue is subject to endothermic degradation and retains 75% of its mass up to 1000 K.

Zinc Oxide/Polyaniline Transparent Conductive Film Prepared by In Situ Polymerization Deposition

2014 ◽  
Vol 997 ◽  
pp. 368-370
Author(s):  
Ping Zhong ◽  
Lin Xiu Cheng ◽  
Xing Lu
Keyword(s):  
Zinc Oxide ◽  
Oxidative Polymerization ◽  
Optimal Conditions ◽  
Chemical Oxidative Polymerization ◽  
Reaction Conditions ◽  
Transparent Conductive Film ◽  
Conductive Film

In this paper，ZnO/PANI transparent conductive film has been prepared by in situ chemical oxidative polymerization, APS as an oxidant. The conductivity and transmittance of ZnO/PANI was measured. It has been investigated of the effects of reaction conditions and the doping component on conductivity, transmissivity and adhesion. With the increase of doping ZnO, the conductivity of ZnO/PANI transparent conductive film, transmittance and adhesion reduced. The optimal conditions is that the concentration of An, APS and PVA are 0.75 mol / L, 0.8 mol / L and 0.5wt%, respectively.

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