Conducting Polymers: Properties and Applications (original) (raw)

Journal of Intelligent Material Systems and Structures

Before conducting polymers can be employed in many applications, some of the intrinsic properties of these materials need to be better understood. An overview of the research and development of conducting polymers being undertaken at UTS is presented. Because conducting polymers are difficult to process once fabricated, an understanding of synthesis parameters and the use of synthesis techniques to produce conducting polymer films with desired properties is of the upmost importance. Descriptions of the galvanostatic and potentiostatic techniques employed to produce polyheterocyclics are presented. Thermal properties such as thermal diffusivity, thermal conductivity and specific heat are being investigated. Preliminary results reveal that the thermal diffusivity of polypyrrole is higher than that achieved with traditional polymers. The nature of contacts and junctions with polypyrrole and poly(3-methylthiophene) are discussed. High work function metals form ohmic junctions with polypyrrole while aluminium forms a Schottky barrier with poly(3-methylthiophene). Microwave studies on polypyrrole films reveal that the microwave transmission and reflection are dependent upon the doping level of the film. Applications of the conducting polymers in data security modules and for light weight electrically conducting wires are also illustrated.

Comparison of microwave and electrical properties of selected conducting polymers

Microwave and Optical Technology Letters, 2008

waveguides in a plane, we reduce the coupling between each other. The results obtained let us consider different possibilities using this architecture to perform planar antennas with specific features. ACKNOWLEDGMENTS This research work is been supported by a Spanish Government Grant (FPU) and by the Spanish Ministry of Science and Technology under Grant AIMS (TEC2005-05 3 1 0/TCM). The simulations presented in this work have been realized using CST Microwave Studio Suite 2006 under a cooperation agreement between Computer Simulation Technology (CST) and Technical University of Madrid. NY substrate used in the prototypes was kindly given by NELTEC S.A.

Microwave synthesis: An alternative approach to synthesize conducting end-capped polymers

Polymer, 2011

Within this study microwave assisted syntheses of functionalized polystyrene (PS), via ATRP, and tetraaniline (TANI) end-capped polymers are demonstrated. Compared to conventional heating, microwave irradiation process in pulsed mode shows the feasibility of conducting end-capped polymers synthesis with no degradation, strong acceleration of polymerization rate and coupling reaction, controlled size and chemical formulation. Conducting polymers with controlled architectures in terms of molecular size of both the insulating (PS) and the conducting (TANI) moieties show a conductivity above 10 À1 S cm À1 when containing 2 wt% TANI while composites of PS and TANI exhibited a conductivity of ca 10 À5 S cm À1 when containing more than 7 wt% TANI.

Advances in conductive polymers

European Polymer Journal, 1998

AbstractÐConductive polymers are a new class of materials which exhibit highly reversible redox behaviour and the unusual combination of properties of metal and plastics. The prospective utility of conductive polymers with a potent application in number of growing technologies in biomolecular electronics, telecommunication, display devices and electrochemical storage systems, etc. has further enhanced the interest of researchers in this novel area. An eort has been made in this article to present an updated review on the various aspects of conductive polymers, viz. synthesis of conductive polymers, doping, structure analysis and proposed utility for further study of the future scienti®c and technological developments in the ®eld of conductive polymers. #

Recent studies of heterocyclic and aromatic conducting polymers

Progress in Polymer Science, 1986

CONTENTS 1. Introduction 2. Polymerization and doping 2.1. Mechanism of conducting polymerization 3. Characterization of conducting polyheterocyclics and polyaromatics 3.1. Stability of polyheterocyclics and polyaromatics 3.2. Percentage of doping, molecular weight, mechanical properties and morphology of conducting polyheterocyclics and polyaromatics 3.3. Spectroscopy of heterocyclic and aromatic conducting polymers 3.3.1. Electrochemical spectroscopy of conducting polyheterocyclics and polyaromatics 3.3.2. Optical and ESR studies 3.3.3. t3C NMR and XPS studies 201 4. Mechanism of electrical conduction in doped polyheterocyclics and polyaromatics 202 5. Conducting copolymers 206 6. Application of doped polyheterocyclics and polyaromatics 208 6.1. Battery application 208 6.2. Photo-electrochemical cell (PEC) 6.3. Schottky barriers, solar cells and solid-state devices 210 6.4. Electro-optic devices 211 6.5. Sensors 6.6. Medicinal uses 213 6.7. Miscellaneous applications 214 7. Concluding remarks Acknowledgements 214 References

Special Issue: Conductive Polymers: Materials and Applications

Materials, 2020

Intrinsically conductive polymers (CPs) combine the inherent mechanical properties of organic polymers with charge transport, opto-electronic and redox properties that can be easily tuned up to those typical of semiconductors and metals. The control of the morphology at the nanoscale and the design of CP-based composite materials have expanded their multifunctional character even further. These virtues have been exploited to advantage in opto-electronic devices, energy-conversion and storage systems, sensors and actuators, and more recently in applications related to biomedical and separation science or adsorbents for pollutant removal. The special issue “Conductive Polymers: Materials and Applications” was compiled by gathering contributions that cover the latest advances in the field, with special emphasis upon emerging applications.

Electrical properties of polymers

2005

Fully revised and expanded, this new edition of Anthony Blythe's successful title on electrical properties of polymers covers both the fundamental and recent developments in this growing area. The book provides a broad and comprehensive account of the topic, describing underlying physical principles and synthesis through to emerging technologies. The second edition places particular emphasis on the new generation of conductive polymers, describing emerging uses of polymers in industrial applications and covering topics such as light emitting diodes, flexible polymers and soft electronics.

Development of New Conductive and Microwave Lossy Materials Involving Conducting Polymer Coatings

in the group of Professor Alan G. MacDiarmid, who was awarded the Nobel Prize in chemistry in 2000 for co-discovery of CP's. There, Dr. Avloni worked (1991-1995) on synthesis, characterization, blending and processing of CP materials. He was the first to demonstrate the effect of CP molecular conformation on their electrical conductivity. Dr. Arthur Henn, Pres. of Marktek Inc., has been involved with conductive textiles for 18 years. Prior to founding Marktek Inc. in 1994, he was one of the key team leaders in the technical and commercial development of Flectron® metalized materials at Monsanto Co.