Core-shell poly(styrene/sulfonatedn-hydroxy ethyl aniline) latex particles prepared by chemical oxidative polymerization in emulsion polymerization

2006 ◽  
Vol 14 (4) ◽  
pp. 466-472 ◽  
Author(s):  
Jin Sup Shin ◽  
Jung Min Lee ◽  
Jung Hyun Kim ◽  
Kiyoshi Suzuki ◽  
Mamoru Nomura ◽  
...  
Keyword(s):  
Emulsion Polymerization ◽  
Oxidative Polymerization ◽  
Core Shell ◽  
Chemical Oxidative Polymerization ◽  
Latex Particles

Luminescent Polymer Latex Particles Prepared by Oxidative Polymerization in Emulsion Polymerization

2007 ◽  
Vol 249-250 (1) ◽  
pp. 265-269 ◽  
Author(s):  
Yeon Jae Jung ◽  
Jung Min Lee ◽  
In Woo Cheong ◽  
Jung Hyun Kim
Keyword(s):  
Emulsion Polymerization ◽  
Oxidative Polymerization ◽  
Latex Particles ◽  
Luminescent Polymer ◽  
Polymer Latex

New Possibilities for Controlling the Morphology of Core-Shell Latex Particles During Emulsion Polymerization

2005 ◽  
Vol 78 (12) ◽  
pp. 1987-1992 ◽  
Author(s):  
V. N. Pavlyuchenko ◽  
O. N. Primachenko ◽  
O. V. Sorochinskaya ◽  
S. S. Ivanchev
Keyword(s):  
Emulsion Polymerization ◽  
Core Shell ◽  
Latex Particles

Spin injection behavior in conducting polymer coated superparamagnetically functional microstructures

2014 ◽  
Vol 28 (15) ◽  
pp. 1450119 ◽  
Author(s):  
Arun S. Prasad
Keyword(s):  
Crystal Growth ◽  
Spin Injection ◽  
Oxidative Polymerization ◽  
Magnetic Core ◽  
Precipitation Method ◽  
Core Shell ◽  
Chemical Oxidative Polymerization ◽  
Thermo Gravimetric ◽  
Co Precipitation ◽  
Dielectric Results

A nanoferrite superparamagnetic system synthesized through co-precipitation method and subsequently dispersed in a medium of de-ionized water was encapsulated with a matrix polymer under constant sonication using chemical oxidative polymerization technique. The polymer coated functional microstructure thus obtained shows enhanced magnetization as evidenced from the results reported elsewhere. The magnetic core crystal growth and anti-spin canting hypothesis were given to be the most general justification behind the unusual enhancement in magnetization and more specifically the rationale could understand recently in accordance with spin injection behavior in functional core-shell microstructures. In this paper, an attempt has been made to correlate the previous magnetization results with spin injection behavior, in conjunction with the thermo gravimetric and dielectric results.

scholarly journals The influence of some factors on the electrical conductivity and particle size of core/shell polystyrene/polyaniline composites

2005 ◽  
Vol 70 (11) ◽  
pp. 1263-1271 ◽  
Author(s):  
Gordana Nestorovic ◽  
Slobodan Jovanovic ◽  
Katarina Jeremic
Keyword(s):  
Particle Size ◽  
Size Distribution ◽  
Oxidative Polymerization ◽  
Composite Particles ◽  
Core Shell ◽  
Chemical Oxidative Polymerization ◽  
Electrically Conductive ◽  
Pani Composite ◽  
Order Of Magnitude ◽  
Polyaniline Composites

The electrically conductive, micron-sized, core/shell polystyrene (PS)/polyaniline (PANI) composite particles were synthesized by chemical oxidative polymerization of aniline in the presence of micron-sized PS particles in 1 M HCl. The conditions of the dispersion polymerization of styrene were optimized. The influence of the initiator type employed for the chemical oxidative polymerization of aniline and the aniline (ANI) concentration on the PS/PANI particle size and size distribution and their conductivity was investigated. The obtained results show that the conductivity of the samples increased with increasing ANI concentration. The conductivity of the PS/PANI composite particles obtained with the highest ANI concentration was of the same order of magnitude as that for PANI powder. The particle size did not depend on the concentration of ANI, while the particle size distribution was narrower at higher concentrations of ANI. .

Polythiophene-Coated Polystyrene Core-Shell Nanoparticles with a Rod-Shaped Polythiophene Shell

2013 ◽  
Vol 712-715 ◽  
pp. 169-174
Author(s):  
Hong Yu Li ◽  
Tian Xiao
Keyword(s):  
Surface Morphology ◽  
Oxidative Polymerization ◽  
Core Shell ◽  
Polystyrene Sphere ◽  
Chemical Oxidative Polymerization ◽  
Shell Nanoparticles ◽  
Nanocomposite Particle ◽  
Feeding Methods ◽  
Core Shell Nanoparticles

A core-shell nanocomposite particle with polystyrene sphere core and polythiophene overlayer shell was synthesized through thiophene chemical oxidative polymerization using uniquely structured polystyrene latexes template. The morphology of polythiophene shell, which has nanorods shaped or featureless surface morphology, can be simply controlled through varying the dosage and feeding methods of oxidizers.

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.

scholarly journals Synthesis of double-responsive magnetic latex particles via seeded emulsion polymerization using macroRAFT block copolymers as stabilizers

2020 ◽  
Vol 11 (3) ◽  
pp. 648-652 ◽  
Author(s):  
Thiago Rodrigues Guimarães ◽  
Muriel Lansalot ◽  
Elodie Bourgeat-Lami
Keyword(s):  
Block Copolymers ◽  
Emulsion Polymerization ◽  
Magnetic Response ◽  
Seeded Emulsion Polymerization ◽  
Latex Particles ◽  
Magnetic Carriers

We report the synthesis of magnetic latex particles decorated with double-responsive PDMAEMA segments with fast magnetic response via RAFT-assisted emulsion polymerization, highlighting this strategy as a powerful tool for magnetic carriers design.

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