Structural and electrical characterization of polyanilines synthesized from chemical oxidative polymerization via doping/de-doping/re-doping processes

2013 ◽  
Vol 46 (50) ◽  
pp. 505301 ◽  
Author(s):  
Shiow-Jing Tang ◽  
Ku-Yen Lin ◽  
Yun-Rong Zhu ◽  
Hsiu-Ying Huang ◽  
Wei-Fu Ji ◽  
...  
Keyword(s):  
Oxidative Polymerization ◽  
Electrical Characterization ◽  
Chemical Oxidative Polymerization

Preparation and characterization of poly(3-methylthiophene)/CeY zeolite composites

RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49343-49349 ◽  
Author(s):  
Pengyue Han ◽  
Junjie Liao ◽  
Jinyu Chang ◽  
Liping Chang ◽  
Weiren Bao
Keyword(s):  
Oxidative Polymerization ◽  
Oxidizing Agent ◽  
Chemical Oxidative Polymerization

Poly(3-methylthiophene)/CeY zeolite nanocomposites are prepared by chemical oxidative polymerization using anhydrous FeCl3 as the oxidizing agent.

scholarly journals Synthesis and Physical Characterization of Carbon Nanotubes Coated by Conducting Polypyrrole

2011 ◽  
Vol 364 ◽  
pp. 50-54 ◽  
Author(s):  
Afarin Bahrami ◽  
Z.A. Talib ◽  
W. Mahmood Mat Yunus ◽  
Kasra Behzad ◽  
Nayereh Soltani
Keyword(s):  
Carbon Nanotubes ◽  
Oxidative Polymerization ◽  
Feed Ratio ◽  
Multiwall Carbon Nanotube ◽  
Chemical Oxidative Polymerization ◽  
Conducting Polypyrrole ◽  
Multiwall Carbon ◽  
Thermal Stability Of

This study describes the preparation of polypyrrole multiwall carbon nanotube (PPy/MWNT) composites by in situ chemical oxidative polymerization. Various ratios of functionalized MWNTs are dispersed in the water, and PPy are then synthesized via in-situ chemical oxidative polymerization on the surface of the carbon nanotubes. The morphology of the resulting complex nanotubes (MWNT-PPY) was characterized by field-emission scanning electron microscopy (FESEM). The conductivity of each composite showed a maximum in the temperature scale of 120 – 160 °C and then decreased dramatically with the increase of temperature. The resultant PPy/MWNT nanotubes enhanced electrical conductivity and thermal stability of nanocomposite compared to PPy which was strongly influenced by the feed ratio of pyrrole to MWNTs.

Preparation and characterization of poly(4-alkyltriphenylamine) by chemical oxidative polymerization

2002 ◽  
Vol 129 (2) ◽  
pp. 123-128 ◽  
Author(s):  
Chihiro Takahashi ◽  
Shinta Moriya ◽  
Nobutoshi Fugono ◽  
Hee Cheong Lee ◽  
Hisaya Sato
Keyword(s):  
Oxidative Polymerization ◽  
Chemical Oxidative Polymerization

Characterization of polyaniline synthesized from chemical oxidative polymerization at various polymerization temperatures

2017 ◽  
Vol 88 ◽  
pp. 311-319 ◽  
Author(s):  
Ku-Yen Lin ◽  
Lun-Wei Hu ◽  
Ko-Lun Chen ◽  
Ming-Deng Siao ◽  
Wei-Fu Ji ◽  
...  
Keyword(s):  
Oxidative Polymerization ◽  
Chemical Oxidative Polymerization

Synthesis and Characterization of Nanocomposite of Copolymer of N-Methyl Pyrrole (NMPy) and N, N-Dimethyl Aniline (NDMA)

2019 ◽  
pp. 124-129
Author(s):  
R. Rathore ◽  
Soni Sharma
Keyword(s):  
Electrical Conductivity ◽  
Surface Morphology ◽  
Oxidative Polymerization ◽  
Polymer Nanocomposite ◽  
Xrd Analysis ◽  
Probe Method ◽  
Synthesis And Characterization ◽  
Chemical Oxidative Polymerization ◽  
Amorphous Nature

Nanocomposite of copolymer of N-Methyl pyrrole (NMPy) and N, N-Dimethyl aniline (NDMA) doped with HCl was synthesized by chemical oxidative polymerization. APS was used as oxidant. The sample was characterized by FTIR, TGA, XRD and four probe method. FTIR confirms the formation of copolymer and its structure. XRD analysis shows the amorphous nature of polymer nanocomposite. The electrical conductivity of sample was measured by using four probe method. Size and surface morphology were demonstrated by SEM.

Structural Characterization of Poly(o-Tolidine)

2005 ◽  
Vol 494 ◽  
pp. 357-362 ◽  
Author(s):  
G. Ćirić-Marjanović ◽  
B. Marjanović ◽  
M. Trchová ◽  
P. Holler
Keyword(s):  
Spectroscopic Analysis ◽  
Platinum Electrode ◽  
Electrochemical Polymerization ◽  
Oxidative Polymerization ◽  
Gel Permeation Chromatography ◽  
Chemical Oxidative Polymerization ◽  
Ammonium Peroxydisulfate ◽  
Gel Permeation ◽  
Ir Spectroscopic

A new polymer of o-tolidine was synthesized by chemical and electrochemical methods from its aqueous solutions in 1M HCl. Chemical oxidative polymerization was performed using ammonium peroxydisulfate as an oxidant. Electrochemical polymerization was carried out using two steps which were successively repeated in a continual process: first, holding the working platinum electrode under a constant anodic potential of +1.6 V, and second, the voltammetric cycle between +0.3 and +1.6 V. During this procedure a polymeric film was formed on the working electrode. Polymerization of o-tolidine was exactly proved by gel permeation chromatography evidencing the chains of molar masses in the range of 1000 – 12600 g mol─1. The structure of poly(o-tolidines) obtained by both chemical and electrochemical procedures was studied by IR spectroscopy. Coupling pathway N–C during polymerization, existence of quinonoid rings and hydrogen bonding involving NH group in polymeric products are revealed by IR spectroscopic analysis. The mechanism of o-tolidine oxidative polymerization is proposed.

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