Showing papers on "Conductive polymer published in 1978"

Electrical cells and batteries and methods of making the same

Abstract: A laminar triplex structure for use in the manufacture of electrical cells and batteries, cells and batteries made therefrom, and methods of making the same. The laminate comprises a thin flat sheet of separator material, a layer of metallic particles on one surface of the separator sheet and adhered thereto with a binder, and a layer of conductive plastic adhered to the layer of metal particles. The laminate is made by the process of coating a dispersion of metal particles in a solution of a polymeric binder in an organic solvent over the separator, drying to remove the solvent, coating over the dried metal layer with a dispersion of conductive particles in a solution of a polymer in an organic solvent, and drying to remove the solvent.

Electrically conducting polymers

Abstract: Electrically conducting polyacetylene compositions are described having incorporated therein a fluorine-containing peroxide, such as FSO2 --O--O--SO2 F. Preferred compositions exhibit novel metal-like conductivity at temperatures above about 150° K., and specific conductivities above about 102 ohm-1 -cm-1 at room temperature, as measured by the standard four-probe method. A process for producing the compositions is also described in which polyacetylene is contacted with the peroxide, preferably in an inert liquid solvent at low temperatures.

Leitfähige Polymere mit Tetrathiafulvalenstruktur

Abstract: Conductive Polymers with Tetrathiafulvalene Structure Synthesis and properties of phenylene- and biphenyl-bridged polymer tetrathiafulvalenes are described. These polymers react with bromine or iodine and provide the radical-cationhalides, whose electrical conductivity as powder compactions are estimated. The conductivity depends on stoichiometric composition of the radicale-salts. The phenylene-bridged polymer-salts show a much higher conductivity than the biphenyl-bridged ones and reach values of 10−3 ω−1 cm−1. The monomer salts have a higher conductivity than the polymer salts (max. 10−1 Ω−1 cm−1).

Siloxane crosslinkable thermoplastics conductive polymer mixt. - contains highly structured non-hygroscopic carbon black as conductive filler

Abstract: The conductive polymer mix, is based on the introduction of Silan-chemical compounds, in the presence of moisture, from dampened thermo-plastic materials only, pref. copolymers or ethylene, or thermo-plastic materials in a mixture of elastomers, as modifiers. In both cases the conductive material is used as an additive. A non hydroscopic carbon-black compound is used as a conductive filler material. An acetylene-carbon is used as a non-hydroscopic carbon. The upper surface is 50-120 m2/g in size. 25-80, pref. 30-50 parts, of the conductive carbon are added, for every 100 parts of polymer. The inner or outer conductive layers consist of a conductive polymer mixture.

Conductive polymer compositions having improved moldability

Abstract: PURPOSE:A stable conductive polymer composition having improved fiber-forming properties, comprising an acrylonitrile polymer, a carbon black-containing antistatic polymer, and a water-insoluble nonionic dispersant.

Quantum theory of polymers : proceedings of the NATO Advanced Study Institute on Electronic Structure and Properties of Polymers held at Namur, Belgium, 31 August-14 September 1977

Abstract: LCAO Methods for Band Structure Calculations of Polymers.- The Evaluation of Electron Repulsion Integrals.- X-ray Photoelectron Spectroscopy and its Application to Polymer Electronic Structure Studies.- Correlation Energy in Solids.- Quantum Mechanical Treatment of Excited Electronic States of Polymers.- Coupled Cluster Many Electron Theory and The Cohesive Energy of Large Systems Consisting of Weakly Interacting Sub-Systems.- Fourier Representation Methods in Electronic Structure Studies of Crystals and Polymers.- Linked-Cluster Perturbation Theory for Closed and Open-Shell Systems: Derivation of Effective It-Electron Hamiltonians.- Methods for The Treatment of Disordered Systems with Possible Applications to Aperiodic Polymers.- Electron States of Structurally-Disordered Chains.- Theoretical Models of Chemisorption of Ions and Small Molecules on Polymers.- Hydrogen Bonding Between Molecules or Ions and in Molecular Crystals.- Electronic Structure of Biopolymers.- Energy Band Structure of Highly Conducting Polymers.- Quantum Mechanical Treatment of Transport Properties of Semiconductors: Possible Application to Polymers.- Quantum Theoretical Treatment of Electronic Effects on The Mechanical Properties of Semiconductors: Possible Application to Polymers.- Theoretical Investigation of The Transport Properties of Polymers and Organic Molecular Crystals.- Index of Authors.