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Polyacetylene - 1st Edition - ISBN: 9780121724603, 9780323143974


1st Edition

Chemistry, Physics, and Material science

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Authors: James C.W. Chien
eBook ISBN: 9780323143974
Imprint: Academic Press
Published Date: 5th June 1984
Page Count: 648
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Polyacetylene: Chemistry, Physics, and Material Science reviews the chemistry, physics, and material science of polyacetylene. Topics covered include polymerization and crystal structure of polyacetylene, isomerization, neutral defects, and solitons. Globular morphology and the effect of heat of polymerization on polyacetylene are also discussed, along with doping and chemical reactions of polyacetylene. This book is comprised of 12 chapters and begins with an introduction to a few basic principles of polymer chemistry and solid-state physics, followed by an overview of charge-transfer salts and conducting polymers other than polyacetylene and a historical background on polyacetylene and a general description of its properties. The next chapter gives a detailed treatment of polymerization, with particular reference to the mechanisms and kinetics of acetylene polymerization and direct determination of polyacetylene molecular weight by radioquenching. The remaining chapters focus on the crystal structures and morphology of undoped polyacetylenes; methods of isomerization; spectroscopic, physical, and mechanical properties of undoped polyacetylene; and various chemical reactions of polyacetylene and polymethylacetylene. The probable mechanisms of doping are proposed and theoretical models for polyacetylene are presented. The final chapter considers a few technical applications of polyacetylene. This monograph will be of interest to chemists, physicists, and polymer scientists and engineers.

Table of Contents


Chapter 1 Introduction

1.1 Synthetic Polymers

1.2 Energy Bands

1.3 Metals, Semiconductors, and Insulators

1.4 Semimetals: Dimensionality

1.5 Charge-Transfer Salts

1.6 Organic Conductive Polymers

1.7 Polyacetylene

Chapter 2 Polymerization

2.1 Introduction

2.2 Polymerization of Acetylene Catalyzed by Ti(OBu)4-AlEt3

2.3 Polymerization of Acetylene by the Luttinger Catalyst

2.4 Methylacetylene Homo- and Copolymers

2.5 Polymerization Mechanism

2.6 Molecular Weight Determination

2.7 Kinetics

2.8 Comparison of Various Catalyst Systems

2.9 Graft and Block Copolymers

Chapter 3 Structures

3.1 Introduction

3.2 Geometric Isomerism

3.3 Chain Regularity

3.4 Degree of Crystallinity

3.5 Crystal Structure of cis-Polyacetylene

3.6 Crystal Structure of trans-Polyacetylene

3.7 Bond-Length Alternation

3.8 Thermal Isomerization and Crystal Structure Change

3.9 Crystal Structure of Diblock Copolymers of Styrene and Acetylene

Chapter 4 Morphology

4.1 Introduction

4.2 Fibrils and Microfibrils

4.3 Globular Morphology and Effect of Heat of Polymerization

4.4 Lamellar Morphology

4.5 Whiskerlike Ribbon Crystal Morphologies

4.6 Mechanically Aligned Polyacetylenes

4.7 Surface Areas

Chapter 5 Isomerization, Neutral Defects, and Solitons

5.1 Introduction

5.2 Thermal Isomerization

5.3 Doping-Induced Isomerization

5.4 Electron Paramagnetic Resonance and Neutral Defects

5.5 Spin Dynamics

5.6 Mechanisms of Soliton Formation and of Cis-Trans Isomerization

Chapter 6 Spectroscopic, Physical, and Mechanical Properties

6.1 Vibrational Spectra

6.2 Optical Absorption and Reflections

6.3 Photoexcitation, Luminescence, and Photoconductivity

6.4 Heat Capacity

6.5 Thermal Conductivity

6.6 Tensile Properties

6.7 Dielectric Constants

6.8 Proton Nuclear Magnetic Resonance

6.9 Carbon-13 Nuclear Magnetic Resonance

Chapter 7 Chemical Reactions

7.1 Thermochemistry

7.2 Reactions with Hydrogen

7.3 Reaction with Bromine

7.4 Reaction with Ozone

7.5 Reaction with Oxygen

7.6 Cross-linking

Chapter 8 Doping

8.1 Introduction

8.2 Doping Methods

8.3 Dopants and the Nature of Dopant Species

8.4 Doping of cis- and trans-Polyacetylenes

8.5 Diffusion of Dopants

8.6 Compensation

8.7 Effect of Doping on Morphology

8.8 Mechanisms of Doping

Chapter 9 Conducting Polyacetylene

9.1 Introduction

9.2 Crystal Structure

9.3 Magnetic Susceptibilities

9.4 Visible and Infrared Absorptions

9.5 Nuclear Magnetic Resonance

9.6 Specific Heats

9.7 Photoelectron Spectra

9.8 Stability

Chapter 10 Theoretical Models

10.1 Band Structure

10.2 Microscopic Discrete Model for a Neutral Soliton

10.3 Continuum Model

10.4 Coulombic Interaction and Correlation Effect

10.5 Properties of Solitons

10.6 Polaron

Chapter 11 Electrical Properties

11.1 Mechanisms for Transport

11.2 Thermopower

11.3 Electrical Conductivity

11.4 Spectroscopic Conductivity

11.5 Microwave Conductivity

11.6 Homogeneity of Doped Polyacetylene

11.7 Probable Transport Mechanisms

Chapter 12 Technology

12.1 Rechargeable Batteries

12.2 Semiconductor Devices and Properties

12.3 Solar Cells




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© Academic Press 1984
5th June 1984
Academic Press
eBook ISBN:

About the Author

James C.W. Chien

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