scholarly journals Chemical Oxidative Polymerization of 2-Aminothiazole in Aqueous Solution: Synthesis, Characterization and Kinetics Study

Polymers ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 407 ◽  
Author(s):  
Hua Zou ◽  
Lu Wang ◽  
Xia Wang ◽  
Pengfei Lv ◽  
Yaozu Liao
Keyword(s):  
Aqueous Solution ◽  
Oxidative Polymerization ◽  
Kinetics Study ◽  
Solution Synthesis ◽  
Chemical Oxidative Polymerization

scholarly journals D.C electrical conductivity of prepared pure and doped polyaniline salt

2019 ◽  
Vol 15 (33) ◽  
pp. 1-10
Author(s):  
Salma M. Hassan
Keyword(s):  
Aqueous Solution ◽  
Electrical Conductivity ◽  
Applied Voltage ◽  
Oxidative Polymerization ◽  
Dc Conductivity ◽  
Rate Process ◽  
Chemical Oxidative Polymerization ◽  
Pure Sample ◽  
Ft Ir ◽  
Doped Polyaniline

Pure Polyaniline salt, and protonation PANI by H2SO4 were synthesized by electro-chemical oxidative polymerization of aniline with acidity of H2SO4. The solution was prepared in reaction temperature equal 291 K and the acidity of aqueous solution was 1 molarities. The prepared polyaniline was characterized by FT-IR, the result indicate that the intensity is increase with increasing of applied voltage. The dc conductivity has been measured for bulk polyaniline pure and doped in the form of compressed pellet with evaporated Ohmic Al electrodes in temperature range (303-423) K. The Eav energy of the thermal rate process of the electrical conductivity was determined. The results indicate that the dc conductivity of doped samples are two or three orders of magnitude higher by comparison with the pure sample and found that the increasing in conductivity of prepared samples with applied voltage is systematic.

Pulse radiolysis of polymers in aqueous solution. Kinetics study

1997 ◽  
Vol 94 ◽  
pp. 244-250 ◽  
Author(s):  
I Janik ◽  
P Kujawa ◽  
P Ulanski ◽  
JM Rosiak
Keyword(s):  
Aqueous Solution ◽  
Pulse Radiolysis ◽  
Kinetics Study ◽  
Solution Kinetics

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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