Synthesis of polythiophene nanoparticles by surfactant-free chemical oxidative polymerization method: Characterization, in vitro biomineralization, and cytotoxicity evaluation

2019 ◽  
Vol 77 ◽  
pp. 243-252 ◽  
Author(s):  
Deval Prasad Bhattarai ◽  
Ganesh Prasad Awasthi ◽  
Bikendra Maharjan ◽  
Joshua Lee ◽  
Beom-Su Kim ◽  
...  
Keyword(s):  
Oxidative Polymerization ◽  
Chemical Oxidative Polymerization ◽  
Polymerization Method

Structural and Optical Study of Chemically Synthesized Polyaniline

2015 ◽  
Vol 7 (1) ◽  
Author(s):  
R. K. Shukla ◽  
Susheel Kumar Singh ◽  
Akhilesh Tripathi
Keyword(s):  
Fourier Transform ◽  
Oxidative Polymerization ◽  
Ultra Violet ◽  
Optical Study ◽  
X Ray Diffraction ◽  
Chemical Oxidative Polymerization ◽  
X Ray ◽  
Ft Ir ◽  
Polymerization Method ◽  
Scanning Electron

Polyaniline (PANI) is synthesized by chemical oxidative polymerization method. The, characterization were made using XRD (X-ray diffraction), FT-IR (Fourier transform spectroscopy), UV -vis (ultra-violet visible spectrophotometer) technique which confirms the synthesis of the Polyaniline. The surface morphology of Polyaniline was studied with scanning electron microscope (SEM).

scholarly journals Spectroscopy and Conductivity Studies of Polyvinyl Alcohol (PVA)/Polypyrrol (Ppy) Nanocomposite with Various Chloride Metals to Improved Properties of the Polymers

2019 ◽  
Vol 16 (1) ◽  
pp. 55-63
Author(s):  
Naglaa Shahin ◽  
Reham Kamal Abd El Hamid
Keyword(s):  
Polyvinyl Alcohol ◽  
Oxidative Polymerization ◽  
Conductivity Measurement ◽  
Charge Carriers ◽  
X Ray Diffraction ◽  
Chemical Oxidative Polymerization ◽  
Metal Chlorides ◽  
X Ray ◽  
Polymerization Method ◽  
Transition Electron

Polyvinyl alcohol- polypyrrole (PVA-PPy) nanocomposites with metal chlorides (FeCl3, NiCl2, CuCl2 and ZnCl2) have been synthesized by chemical oxidative polymerization method. These synthesized nanocomposites are characterized by using FTIR, X-ray diffraction, Transition electron microscope (TEM) and Conductivity measurement. TEM exhibit that all of the composites have uniform sizes and morphologies.  The diameter of PVA/PPy nanocompsite is 58nm when the metals added to the PVA/PPy the diameters becomes smaller. The variation of electrical conductivity (log ?) with 1000/T for PVA/PPy nanocomposite with metal chlorides revealed that the increase in conductivity s at temperature (393K) with added metals can be attributed to the creation of induced charge carriers in PVA/PPy matrix

Synthesis and Characterization Polyaniline/Cobalt Oxide Nanocomposite by Chemical Oxidation Method

2018 ◽  
Vol 1 (1) ◽  
pp. 9-20 ◽  
Author(s):  
M Haridevi ◽  
S Prabu ◽  
M Lakshmi Devi ◽  
E Bhakya Lakshmi ◽  
K Mohanraj ◽  
...  
Keyword(s):  
Cobalt Chloride ◽  
Uv Light ◽  
Low Cost ◽  
Oxidative Polymerization ◽  
Chemical Oxidation ◽  
X Ray Diffraction ◽  
Chemical Oxidative Polymerization ◽  
Photo Degradation ◽  
X Ray ◽  
Polymerization Method

The Co3O4-PANI nanocomposites has been synthesized by chemical oxidative polymerization method using cobalt chloride. It is a simple and low cost method to prepare nanocomposite. The prepared samples were characterized by using Scanning Electron Microscope (SEM), X-ray diffraction (XRD) and Fourier Transform Spectroscopy (FTIR) to get surface morphology, idea of getting particles of nano sized range so that further characterization can be done, to study the net surface charge of the nanoparticles by Zeta potential, photoluminescence of synthesized nanocomposite and measure photocatalytic activity of the synthesized nanomaterials was successfully tested for photo degradation of dye under UV light were studied

scholarly journals NIR-Triggered Hyperthermal Effect of Polythiophene Nanoparticles Synthesized by Surfactant-Free Oxidative Polymerization Method on Colorectal Carcinoma Cells

Cells ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 2122
Author(s):  
Deval Prasad Bhattarai ◽  
Beom Su Kim
Keyword(s):  
Apoptotic Cell ◽  
Oxidative Polymerization ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Colorectal Cancer Cells ◽  
Infra Red ◽  
Alternative Material ◽  
Experimental Findings ◽  
Polymerization Method

In this work, polythiophene nanoparticles (PTh–NPs) were synthesized by a surfactant-free oxidative chemical polymerization method at 60 °C, using ammonium persulphate as an oxidant. Various physicochemical properties were studied in terms of field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), Fourier transform infra-red (FT-IR) spectroscopy, and differential scanning calorimetry (DSC)/thermogravimetric analysis (TGA). Photothermal performance of the as-synthesized PTh–NPs was studied by irradiating near infra-red of 808 nm under different concentration of the substrate and power supply. The photothermal stability of PTh–NPs was also studied. Photothermal effects of the as-synthesized PTh–NPs on colorectal cancer cells (CT-26) were studied at 100 µg/mL concentration and 808 nm NIR irradiation of 2.0 W/cm2 power. Our in vitro results showed remarkable NIR laser-triggered photothermal apoptotic cell death by PTh–NPs. Based on the experimental findings, it is revealed that PTh–NPs can act as a heat mediator and can be an alternative material for photothermal therapy in cancer treatment.

scholarly journals Facial Synthesis and Characterization of Polypyrrole/zinc oxide (ZnO) Nanorode and Flower-like Shape Composites

2018 ◽  
Vol 34 (1) ◽  
Author(s):  
Sang Nguyen Xuan
Keyword(s):  
Zinc Oxide ◽  
Oxidative Polymerization ◽  
Polymer Nanocomposite ◽  
Synthesis And Characterization ◽  
Chemical Oxidative Polymerization ◽  
Sem Images ◽  
X Ray ◽  
Polymerization Method ◽  
Composite Samples

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.

Optimization and thermal effects of polyaniline nanomaterial synthesized by chemical oxidative polymerization method

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Dhachanamoorthi N ◽  
Padmapriya B
Keyword(s):  
Particle Size ◽  
Antibacterial Activity ◽  
Functional Group ◽  
Oxidative Polymerization ◽  
Quantitative Information ◽  
Particle Size Analysis ◽  
Polymer Materials ◽  
Size Analysis ◽  
Chemical Oxidative Polymerization ◽  
Polymerization Method

Scientific zone has a great attention to the polyaniline (PANI) nanomaterials which is an organic, conductive and a conjugated polymer. It has variety of applications such as in batteries, microelectronics displays, antistatic coatings, electromagnetic shielding materials and actuators [1]. PANI was synthesized by using chemical oxidative polymerization method. The preparation process carried out by the main reagent aniline (C6H7N) with the ammonium peroxydisulpate (APS) ((NH4)2S2O8) which act as an oxidant and hydrochloric acid (HCL) as a dopant in an ambient temperature. The synthesized polymer materials are annealed at different temperatures such as 200°C,300°C and 400°C. After annealed treatment, the weight percentage of polymer material are changed were decreases with increase the temperature of pure PANI (0.441g),200°C(0.172g), 300°C(0.147g), 400°C (0.105g). Then the obtained polymer materials are characterized by FTIR, UV-Visible, Particle size analysis (PSA) and Antibacterial analysis. FTIR is used to determine the functional group of polymer nanomaterials. UVVisible exhibits the quantitative information about the polymer nanomaterials by using its band gap. The size of the individual particles and the size distribution range of the respective samples are determined by the Particle Size Analyzer (PSA). Antibacterial activity is used to find the polymer nanomaterials which kills bacteria, or bacteriostatic,which slow down the growth of bacteria. These profiling techniques are used to find the properties like functional group, quantitative information, particle size, antibacterial activity of respective polyaniline nanomaterial samples.

α-MoO3/polyaniline composite for effective scavenging of Rhodamine B, Congo red and textile dye effluent

RSC Advances ◽  
2016 ◽  
Vol 6 (34) ◽  
pp. 28871-28886 ◽  
Author(s):  
S. Dhanavel ◽  
E. A. K. Nivethaa ◽  
K. Dhanapal ◽  
V. K. Gupta ◽  
V. Narayanan ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Congo Red ◽  
Oxidative Polymerization ◽  
Textile Dye ◽  
Chemical Oxidative Polymerization ◽  
Textile Dye Effluent ◽  
Polymerization Method

Polyaniline modified MoO3 composites were synthesized via a chemical oxidative polymerization method and employed as a novel adsorbent for Rhodamine B (RhB), Congo red (CR) and textile dye effluent.

Non-covalent functionalization of CNTs with polycarbazole: a chemiresistive humidity sensor with tunable chemo-electric attributes at room temperature

2018 ◽  
Vol 42 (9) ◽  
pp. 6918-6931 ◽  
Author(s):  
Madhurima Das ◽  
Saptarshi Ghosh ◽  
Somenath Roy
Keyword(s):  
Room Temperature ◽  
Humidity Sensor ◽  
Oxidative Polymerization ◽  
Multiwall Carbon Nanotubes ◽  
Chemical Oxidative Polymerization ◽  
Humidity Sensors ◽  
Covalent Functionalization ◽  
Polymerization Method ◽  
Multiwall Carbon

This article describes the non-covalent functionalization of multiwall carbon nanotubes (MWCNTs) with polycarbazole (PCz) via an in situ chemical oxidative polymerization method and subsequent fabrication of resistive humidity sensors.

Sign in / Sign up

Export Citation Format

Share Document