In this work, we report synthesis and characterization of copper nanoparticles in polymer matrix by wet-chemical reduction method using ascorbic acid as reducing agent, copper (II) sulfate as metal precursor and polyvinylpyrrolidone k-30 (PVP K-30) as surfactant agent. The reaction was carried out in a high-speed stirring mixture at room temperature under nitrogen atmosphere. Characterization o...

This paper deals with a synthesis of new ionising radiation attenuation composite material from Lu2O3 - Bi2O3 nanoparticles structure, that has never been described yet. The describes the preparation nano- and microparticles by three methods: self-combustion synthesis, solid-state method coprecipitation method. Polymer solution was prepared Polyvinyl Butyral. Afterwards, nanofibers were process...

interpenetrating polymer networks (ipn) were formed involving hydrophobic polybutyl acrylate (pba) and hydrophilic poly hydroxyethyl acrylate (phea). pba prepolymer was first formed in presence of ferric oxide nanoparticles (

ethylene bis-stearamide is one of the important acrylonitrile-butadiene-styrene ()abs)( polymer additives, which is used as lubricant, slip agent and mold release agent. in this research, ethylene bis-stearamide for abs application was synthesized using stearic acid and ethylene diamine under reflux condition. refluxing prevented ethylenediamine from evaporation and thus the initial molar ratio...

beside ziegler-natta and phillips catalysts the development of methylaluminoxane (mao) as cocatalyst incombination with metallocenes or other transition metal complexes for the polymerization of olefins haswidely increased the possibilities in controlling the polymer composition, polymer structure, tacticity and special properties with high precision. these catalysts allow the synthesis of isot...

Interpenetrating polymer networks (IPN) were formed involving hydrophobic polybutyl acrylate (PBA) and hydrophilic poly hydroxyethyl acrylate (PHEA). PBA prepolymer was first formed in presence of ferric oxide nanoparticles (

Interpenetrating polymer networks (IPN) were formed involving hydrophobic polybutyl acrylate (PBA) and hydrophilic poly hydroxyethyl acrylate (PHEA). PBA prepolymer was first formed in presence of ferric oxide nanoparticles (

The pre-pilot scale synthesis of 1-phenylethanol was carried out by the cathodic hydrogenation of acetophenone in a 100 cm 2 (geometric area) Polymer Electrolyte Membrane Electrochemical Reactor. The cathode was a Pd/C electrode. Hydrogen oxidation on a gas diffusion electrode was chosen as anodic reaction in order to take advantage of the hydrogen evolved during the reduction. This hydrogen ox...