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

Author(s):  
R. Rathore ◽  
Soni Sharma

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.

Author(s):  
Sang Nguyen Xuan

Polypyrrole (PPy) nanocomposites reinforced with zinc oxide (ZnO) nanorod and nano flower were fabricated by chemical oxidative polymerization method using an ammonium per-sulphate (APS, (NH4)2S2O8) as an oxidizing agent. The polymer nanocomposite were characterized by X-ray diffractometer (XRD), scanning electron microscopy (SEM), and Fourier transform infrared (FTIR). The results were compared with pure as-prepared PPy. The SEM images of the nanocomposites show homogeneous dispersion characteristics and different morphologies of ZnO structures such as rod and flower-like shapes.  In the FTIR spectra, composite samples showed characteristic peaks of PPy shifted to higher positions confirmed the interfacial interactions between ZnO and PPy matrix.


2011 ◽  
Vol 311-313 ◽  
pp. 1262-1266 ◽  
Author(s):  
Hui Yong Guo ◽  
Wen Bo Huang ◽  
Wen Fang Li ◽  
Guo Ge Zhang ◽  
En Fu Wang

Pure titanium plates as anode and mixture of solutions containing 0.2M Sr(OH)2and 0.2M NaOH as electrolyte, titanium plates were microarc-oxidated for 10 minutes. X-Ray Diffraction (XRD) analysis indicated that SrTiO3film was successfully deposited. The MAO film is composed mainly of tetragonal SrTiO3phases and found to possess high dielectric constant of 371.0 at the frequency of 1 kHz. Scanning Electron Microscopy (SEM) and portable roughness tester were used to characterize the surface morphology and roughness values(Ra), The influences of electrolyte concentration, current density and frequency on the surface morphology of SrTiO3film were investigated in detail . several rules were drawn from the results. A kinetics expression was established for the growth of film thickness and agreed well with the experimental results.


2020 ◽  
Vol 38 (2) ◽  
pp. 296-304
Author(s):  
S. Baruah ◽  
N. Devi ◽  
A. Puzari

AbstractPoly(p-phenylenediamine) is a potential precursor for designing of new materials for optoelectronic application. Synthesis and characterization of poly(p-phenylenediamine) – TiO2 nanocomposites has been demonstrated. Structural change observed due to the formation of nanocomposites was correlated with concomitant change in conducting behavior of the parent polymer. Polymer nanocomposite was synthesized through an in-situ oxidative polymerization technique with simultaneous dispersion of TiO2 nanoparticles. TiO2 nanoparticles were synthesized via sol-gel process. Structural characterization was accomplished by using conventional spectroscopic and imaging techniques. I-V measurement of the nanocomposites revealed that the nearly nonconducting poly(p-phenylenediamine) after structural modification exhibits conductivity of 10−6 S/cm leading to formation of wide band gap semiconducting materials.


2017 ◽  
Vol 72 (4) ◽  
pp. 1007-1020 ◽  
Author(s):  
Wanar Kongkaew ◽  
Watchara Sangwan ◽  
Walaiporn Prissanaroon-Ouajai ◽  
Anuvat Sirivat

2013 ◽  
Vol 678 ◽  
pp. 239-243 ◽  
Author(s):  
Raman Sasikumar ◽  
Paramasivam Manisankar

Electroactive copolymer of o-anisidine and ethyl 4-aminobenzoate were synthesized in 1 M HClO4 using cyclic voltammetry on glassy carbon electrode. The copolymer was characterized by FT-IR spectral data. The surface morphology was studied using SEM analysis. The grain size of the copolymer was measured using XRD studies and was found to be 70 nm. The electrical conductivity of the copolymer was 3.14 ×10−3 S cm−1, as determined using a four-probe conductivity meter.


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