Optical and micro‐analytical study of a copper–conjugated polymer composite

Abstract

An oriented morphology of a conjugated polymer has been synthesized by using cupric sulfate as the oxidizing agent. A one pot, in-situ chemical synthesis approach has been utilized in which cupric sulfate is reduced during the polymerization process and forms copper nanoparticles, which are evenly dispersed in the polymer fiber. The elemental identity of the nanoparticles was determined by means of EDX analyses and EELS mapping for the copper using analytical transmission electron microscopy (TEM). The TEM images at higher magnifications showed that the copper particles were highly dispersed throughout the polymer matrix. Optical properties of the polymer were studied by UV -vis, Infrared and Raman spectra analysis and provided information regarding the chemical structure of the polymer. A brief mechanistic approach regarding the formation of the fiber-like metal-polymer composite material is given.

Template‐less synthesis of polymer hollow spheres: an efficient catalyst for Suzuki coupling reaction

“…Conjugated polymer can be prepared either by chemical or electrochemical polymerization technique. In situ polymerization and composite formation (IPCF) types of reactions for the synthesis of ‘metal–polymer composite material’ have potential advantages in the area of ‘synthetic material science’ owing to both the polymer and the nanoparticles being produced simultaneously, which facilitates an intimate contact between the particles and the polymer through functionalization . IPCF is a kind of template‐less synthesis route where the nanoparticles are mainly catalyze the direction and orientation of the growth of the polymer chain.…”

“…The copper nanoparticles produced had an average size of 5 nm and were highly dispersed within the polymer matrix. A single step, in situ chemical synthetic route for the preparation of a copper–poly(3,5‐dimethylaniline) composite material has also been reported in which 7–10 nm diameter copper nanoparticles are highly dispersed within the fiber‐shaped polymer . An IPCF synthetic route for the preparation of a palladium nanoparticle–poly( o ‐methoxyaniline) composite material has been reported in which Pd‐acetate and o ‐methoxyaniline were used as the precursor.…”

Polymer-encapsulated metal nanoparticles: optical, structural, micro-analytical and hydrogenation studies of a composite material

“…Depending on the synthesis techniques used and the characteristics of the inorganic materials, the ultimate properties of the resulting composite can be controlled. Gold [10][11][12], copper [13,14], platinum [15] and palladium [16,17] nanoparticles have been successfully incorporated into conjugated polymers.…”

Directional assembly of polyaniline functionalized gold nanoparticles

“…The third approach has involved the blending of preformed nanoparticles into a pre-synthesized polymer [8]. The fourth procedure is the most desirable approach in order to achieve an intimate contact between the metal and the polymer, and it involves the blending of a monomer and a metal salt [9]. The choice of the metal salt and the monomer should be such that the metal salt can oxidize the monomer to form a polymer as well as utilize the electrons released during the oxidation to reduce the metal salt to form metal nanoparticles.…”