Electronic Properties of Polymers and Related Compounds: Proceedings of an International Winter School, Kirchberg, Tirol, February 23 – March 1, 1985

ISBN-13: 9783642825712 / Angielski / Miękka / 2011 / 359 str.

H. Kuzmany;M. Mehring;Siegmar Roth

Opis

At the International Winter School on "Electronic Properties of Polymers and Related Compounds" particular attention was paid to a very new and special field in polymer research. It is concerned with the study of the electronic structure of polymers and with physical and chemical properties directly re lated to this structure. In particular, tutorial and research contributions on electrical, electrochemical, optical, magnetic, lattice dynamical and structural properties were presented. In addition, review reports on related topics such as charge transfer complexes and linear-chain compounds (transi tion-metal trichalcogenides) were included. In two discussion meEjtings, the special role of polyacetylene and possible present and future applications of the electronic properties of polymers, as e.g. conductors or as electrodes in electrochemical cells, were elucidated. The electronic properties of polymers cover a wide range of research problems which are of particular interest for polymers with a 1T-electron system. Thus, a great part of the work presented was concerned with conjuga ted systems. Additional presentations dealt with other systems such as bio polymers, photopolymers or electrets, which are of significant scientific and technical importance. It was demonstrated how their electronic proper ties are increasingly being investigated from a fundamental point of view by applying known concepts of snlid-state science."

Spis treści

I Introduction.- Conductive Polymers.- Applications of Electrically Conducting Polymers.- Structural Background of Conductivity in Polymers; Results from X-Ray, Neutron and EM Investigations..- II Structure and Conductivity of Polyacetylene.- Structural Features of Pure and Doped Polyacetylene: (CH)x.- In-Situ Diffraction on Doping Reactions.- Local Structure in Halogen-Doped Polyacetylene from X-Ray Absorption Spectroscopy..- Recent Developments in Precursor Routes to Polyacetylene.- Electronic Properties of Polyacetylene Prepared by the Durham Route.- Intrinsic Anisotropic Properties of trans-(CH)x.- Frequency-Dependent Electronic Processes in Crystalline trans-(CH)x.- Non-Solitonic Transport Model for Polyacetylene.- Structure of K-Doped Polyacetylene and Its Variations with Annealing, Studied by Neutron Diffraction..- Reflectivity and Magnetoreflectivity of Iodine-Doped Polyacetylene.- III Theory and Optical Excitations.- Theoretical Description of Polyacetylene: Intrinsic Defect Sturctures, Extrinsic Disorder and Electronic Correlation..- Photomodulation of Soliton Defects in Polyacetylene.- Time-Dependent Photoconductivity of Polyacetylene and ?-Carotene.- High Resolution Spectroscopy of Polyacetylene Oligomers: Linear Polyenes with 3 Through 7 Double Bonds.- Electronic Sturcture of the Insulating Forms of Polyaniline.- IV Raman and Infrared Spectroscopy.- The Dispersion Effect of Resonance Raman Lines in trans-Polyacetylene.- Vibrational Properties of Doped Conjugated Polymers.- Resonant Raman Scattering from cis and trans-Polyacetylene.- Electronic Sturcture of Polyenes Containing Chain Defects.- Characterization of Disorder in Polyacetylene.- Effect of Bond-Length Distribution on Raman Scattering of trans-Polyacetylene..- Ab Initio Study of the Influence of Molecular Structure on the Static Polarizability of Conjugated Chains.- Luminescence from trans-Polyacetylene Degraded by Laser Irradiation.- Intensity and Frequency Vibrational Spectroscopy of Conducting Polymers.- V Aromatic Polymers and New Polymerization Reactions.- Aromatic Polymers: Evolution of Their Electronic Properties as a Function of Bond-Length Alternation and Torsion Angle Along the Chains.- Investigation of the Electronic Structure of Conducting Polymers by Electron Energy-Loss Spectroscopy.- The Mechanical Properties of Polypyrrole Plates.- Frequency and Temperature-Dependent Complex Conductivity of Some Conducting Polymers..- Structure and Conductivity of Some Heavily Doped Polypyrroles.- Polythieno [3,2-b]Pyrrole: Preparation, Structure and Properties.- Composites from Polypyrrole and Polyether/Polyester Thermoplastic Elastomer..- Infrared and Optical Absorption in Poly(4,4?diphenylenediphenylvinylene).- A Carbonyl-Olefin Exchange Reaction — New Route to Conjugated Polymers.- VI Electrochemistry.- Problems Related to Polymer Battery Design.- Electrochemical and Spectroelectrochemical Studies of Polypyrrole and Polyaniline..- Spectroscopic Characterization of Some Polyanilines.- Resonance Raman Scattering from Polyaniline.- In Situ Infrared Spectro-Electrochemical Investigations of Polythiophenes..- VII Polydiacetylene.- Raman Spectroscopy of Conjugated Polymers.- Electronic Structures of Conjugated Polydiacetylene Oligomer Molecules.- Excitons and Polarons in Polyconjugated Diacetylene Molecules.- Excitons in Short-Chain Polydiacetylene Molecules.- Luminescence of a Fully Polymerized Polydiacetylene.- Electron Motion on Polydiacetylene Chains.- VIII Magnetic Resonance.- Magnetic Resonance of Conjugated Polymers.- Nuclear Spin-Lattice Relaxation in trans-(CH)x. A Confined Soliton Model Including Nuclear Spin-Flip Diffusion.- 13C-NMR Investigation of an Oxygen Defect in trans-Polyacetylene.- NMR Study of Alkali-Doped (CH)x and (CD)x Films.- Magnetic Resonance Study of Metallic Polyacetylene.- In Situ ESR Study of Electrochemical Doping in Conducting Polymers.- IX Non-Conjugated Polymers.- Collective Phenomena in Polypeptides..- Photopolymers for Optical Memories and Waveguides.- Polymeric Electrets.- Electronic Processes in Polymeric Dielectrics Under High Electrical Fields..- Polymeric, Electrically Conducting ?-(p.Diisocyanobenzene)-2, 3-naphthalocyaninatoiron(II)..- Electrical Resistivity and IR Behaviour of Metal-Free and Copper Phthalocyanine — Carbon Black Mixtures..- X Related Topics.- Charge Density Waves and Electrical Instabilities in Niobium Triselenide and Similar Compounds..- Silicon Technology vs. Molecular Electronics.- Index of Contributors.