Catalytic Oxidative Polymerization of Vinyl Monomers Using Cobalt Phthalocyanine Complex and an Exploratory Investigation on the Polymerization of Vinyl Acetate

2001 ◽  
Vol 34 (6) ◽  
pp. 1558-1563 ◽  
Author(s):  
A. K. Nanda ◽  
K. Kishore
Keyword(s):  
Vinyl Acetate ◽  
Oxidative Polymerization ◽  
Vinyl Monomers ◽  
Cobalt Phthalocyanine ◽  
Phthalocyanine Complex ◽  
Exploratory Investigation

Kinetics of the inhibited oxidative polymerization of vinyl monomers in the presence of an anti-oxidant (AO)

1976 ◽  
Vol 18 (2) ◽  
pp. 399-408 ◽  
Author(s):  
N.N. Tvorogov ◽  
I.A. Matveyeva ◽  
A.A. Volod'kin ◽  
A.G. Kondrat'eva ◽  
A.A. Berlin
Keyword(s):  
Oxidative Polymerization ◽  
Vinyl Monomers ◽  
Anti Oxidant ◽  
Kinetics Of

Pre-treatment of CaCO3 nanofiller by irradiation in the presence of vinyl monomers for the preparation of poly(vinyl acetate) composites

e-Polymers ◽  
2004 ◽  
Vol 4 (1) ◽  
Author(s):  
Mirela Leskovac ◽  
Vera Kovačević ◽  
Sanja Lučić Blagojević ◽  
Domagoj Vrsaljko ◽  
Vesna Volovšek
Keyword(s):  
Vinyl Acetate ◽  
Tensile Tests ◽  
Strong Interactions ◽  
Vinyl Monomers ◽  
Interfacial Interactions ◽  
Mechanical Mixing ◽  
Pre Treatment ◽  
Morphology And Mechanical Properties ◽  
Encapsulated Nanoparticles

AbstractPoly(vinyl acetate) (PVAc) composites were prepared by different approaches, namely (i) by mechanical mixing of untreated CaCO3 and PVAc, (ii) by mechanical mixing of CaCO3 pre-treated by irradiation polymerization in the presence of vinyl acetate, and (iii) by in situ emulsion polymerization of VAc in the presence of untreated CaCO3 nanofiller. The effects of nanoparticle pre-treatment and different approaches of preparation were correlated with changes in morphology and mechanical properties of PVAc composites using scanning electron microscopy and tensile tests. Untreated CaCO3 nanoparticles in the composite prepared by mechanical mixing provided strong interactions with the PVAc matrix. On the other hand, CaCO3 pre-treated nanoparticles decreased the interfacial interactions. For composites prepared by in situ polymerization a better dispersion of encapsulated nanoparticles was achieved and, as a result, a significant improvement of composite strength was observed. Interfacial interactions in nanocomposites can be changed by filler pre-treatment or by a suitable way of nanocomposite preparation.

Electrochemical behaviour of zeolite-encapsulated cobalt phthalocyanine complex in DMSO and DMF solutions

1991 ◽  
Vol 315 (1-2) ◽  
pp. 313-318 ◽  
Author(s):  
Fethi Bedioui ◽  
Elisabeth De Boysson ◽  
Jacques Devynck ◽  
Kenneth J. Balkus
Keyword(s):  
Electrochemical Behaviour ◽  
Cobalt Phthalocyanine ◽  
Phthalocyanine Complex

scholarly journals Obtaining conductive composites of PANI and thermoplastic polymers

2019 ◽  
pp. 11-15
Author(s):  
Diana Nelly Contreras-Zarazúa ◽  
David Contreras-Lopéz ◽  
Rosalba Fuentes-Ramirez ◽  
Rosario Galindo-González
Keyword(s):  
Cyclic Voltammetry ◽  
Impedance Spectroscopy ◽  
Vinyl Acetate ◽  
Oxidative Polymerization ◽  
Ammonium Persulfate ◽  
Polymerization Process ◽  
Chemical Oxidative Polymerization ◽  
Thermoplastic Polymers ◽  
Conductive Composites ◽  
Polar Monomer

Currently, the polymers industry has gained increasing importance due to the versatility of its properties. In this work were synthesized copolymers of styrene with vinyl acetate at different concentrations through a process polymerization of suspension, which are the starting points for obtaining of composites with polyaniline synthesized PANI chemical oxidative polymerization process, used for doping HCl at a concentration of 1.5 M and ammonium persulfate 0.5 M in a mass radio of 1:1. The conductivity was evaluated by means of cyclic voltammetry and impedance spectroscopy, in order to determine the effect of the concentration of the polar monomer in the composite founded that increase concentration of polar comonomer the conductivity also too.

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