All Outputs (274)

POLYANILINE, AIR-STABLE ORGANIC METAL - FACT, NO LONGER FICTION (1995)
Journal Article
Monkman, A., Adams, P., Laughlin, P., & Holland, E. (1995). POLYANILINE, AIR-STABLE ORGANIC METAL - FACT, NO LONGER FICTION. Synthetic Metals, 69(1-3), 183-186

Via improved chemistry we have increased the maximum attainable conductivity in oriented polyaniline. D.C. conductivity's approaching 10(4) Scm(-1) have been measured. Temperature dependent transport measurements reveal that our new polyaniline behav... Read More about POLYANILINE, AIR-STABLE ORGANIC METAL - FACT, NO LONGER FICTION.

MU-SR STUDIES OF SPIN EXCITATIONS IN POLYANILINE (1995)
Journal Article
Pratt, F., Valladares, R., Pattenden, P., Blundell, S., Hayes, W., Monkman, A., & Nagamine, K. (1995). MU-SR STUDIES OF SPIN EXCITATIONS IN POLYANILINE. Synthetic Metals, 69(1-3), 231-232

Muon techniques have been used to study the spill excitations in polyaniline. The relaxation rate provides information about the spin dynamics. 1D spin diffusion is observed at low temperature in non-metallic materials with a crossover to 2 or 3D beh... Read More about MU-SR STUDIES OF SPIN EXCITATIONS IN POLYANILINE.

TOWARDS THE EFFECTS OF CONJUGATION LENGTH ON PHOTOINDUCED SPECIES (1994)
Journal Article
Brassett, A., Monkman, A., & Bloor, D. (1994). TOWARDS THE EFFECTS OF CONJUGATION LENGTH ON PHOTOINDUCED SPECIES. Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 256, 493-498

Optical absorption and photoinduced absorption measurements of a series of endcapped oligoenes are reported: clear trends are seen as a function of chain length.

A FURTHER STEP TOWARDS STABLE ORGANIC METALS - ORIENTED FILMS OF POLYANILINE WITH HIGH ELECTRICAL-CONDUCTIVITY AND ANISOTROPY (1994)
Journal Article
Adams, P., Laughlin, P., Monkman, A., & Bernhoeft, N. (1994). A FURTHER STEP TOWARDS STABLE ORGANIC METALS - ORIENTED FILMS OF POLYANILINE WITH HIGH ELECTRICAL-CONDUCTIVITY AND ANISOTROPY. Solid State Communications, 91(11), 875-878

Solvent cast polyaniline films have been uniaxially oriented and their conductivities measured. Magnetic susceptibility measurements reveal that the polymer behaves as a highly one dimensional metallic system.

SPIN DYNAMICS STUDY IN POLYANILINE - MACROSCOPIC AND MICROSCOPIC TRANSPORT PROPERTY RELATIONSHIP (1994)
Journal Article
Travers, J., Leguyadec, P., Adams, P., Laughlin, P., & Monkman, A. (1994). SPIN DYNAMICS STUDY IN POLYANILINE - MACROSCOPIC AND MICROSCOPIC TRANSPORT PROPERTY RELATIONSHIP. Synthetic Metals, 65(2-3), 159-166

Proton spin lattice relaxation times T1 have been measured in the frequency range 7-95 MHZ on a set of unstretched and stretched polyaniline films, together with d.c. conductivity. A highly anisotropic quasi 1D spin diffusion is evidenced in all the... Read More about SPIN DYNAMICS STUDY IN POLYANILINE - MACROSCOPIC AND MICROSCOPIC TRANSPORT PROPERTY RELATIONSHIP.

EFFECTS OF ORDER AND DISORDER ON FIELD-EFFECT MOBILITIES MEASURED ON CONJUGATED POLYMER THIN-FILM TRANSISTORS (1994)
Journal Article
Holland, E., Bloor, D., Monkman, A., Brown, A., Deleeuw, D., Bouman, M., & Meijer, E. (1994). EFFECTS OF ORDER AND DISORDER ON FIELD-EFFECT MOBILITIES MEASURED ON CONJUGATED POLYMER THIN-FILM TRANSISTORS. Journal of Applied Physics, 75(12), 7954-7958

The morphology of conjugated polymer thin films has been controlled by exploiting the processes giving rise to solvatochromism in the initial polymer solutions from which the polymer films were deposited by spin coating. The material used was the sub... Read More about EFFECTS OF ORDER AND DISORDER ON FIELD-EFFECT MOBILITIES MEASURED ON CONJUGATED POLYMER THIN-FILM TRANSISTORS.

A COMPARATIVE-STUDY OF THE ELECTROCHEMICAL PROPERTIES OF DIP-COATED, SPUN, AND LANGMUIR-BLODGETT-FILMS OF POLYANILINE (1994)
Journal Article
Goldenberg, L., Petty, M., & Monkman, A. (1994). A COMPARATIVE-STUDY OF THE ELECTROCHEMICAL PROPERTIES OF DIP-COATED, SPUN, AND LANGMUIR-BLODGETT-FILMS OF POLYANILINE. Journal of The Electrochemical Society, 141(6), 1573-1576

The electrochemistry of polyaniline (PANi), which has been chemically synthesized and processed in a variety of ways into thin films, has been studied, and a comparison to those properties observed in thin electrochemically grown PANi films made. In... Read More about A COMPARATIVE-STUDY OF THE ELECTROCHEMICAL PROPERTIES OF DIP-COATED, SPUN, AND LANGMUIR-BLODGETT-FILMS OF POLYANILINE.

ELECTROCHEMICAL PROPERTIES OF HEXADECANOYLTETRATHIAFULVALENE LANGMUIR-BLODGETT-FILMS (1994)
Journal Article
Goldenberg, L., Cooke, G., Pearson, C., Monkman, A., Bryce, M., & Petty, M. (1994). ELECTROCHEMICAL PROPERTIES OF HEXADECANOYLTETRATHIAFULVALENE LANGMUIR-BLODGETT-FILMS. Thin Solid Films, 238(2), 280-284

The electrochemical behaviour of monolayer and multilayer films of hexadecanoyltetrathiafulvalene, deposited on conductive substrates by the Langmuir-Blodgett technique, has been studied by cyclic voltammetry, chronoamperometry and visible/infrared s... Read More about ELECTROCHEMICAL PROPERTIES OF HEXADECANOYLTETRATHIAFULVALENE LANGMUIR-BLODGETT-FILMS.

VAPOR RECOGNITION USING ORGANIC FILMS AND ARTIFICIAL NEURAL NETWORKS (1994)
Journal Article
Barker, P., Chen, J., Agbor, N., Monkman, A., Mars, P., & Petty, M. (1994). VAPOR RECOGNITION USING ORGANIC FILMS AND ARTIFICIAL NEURAL NETWORKS. Sensors and Actuators B: Chemical, 17(2), 143-147

Organic thin-film sensors based on the thermal evaporation and dip-coating of polyaniline, and on the Langmuir-Blodgett deposition of a vanadium porphyrin, have been fabricated. The d.c. electrical resistances of the individual elements are found to... Read More about VAPOR RECOGNITION USING ORGANIC FILMS AND ARTIFICIAL NEURAL NETWORKS.

WHAT DO RING ROTATIONS DO FOR POLYANILINE (1993)
Journal Article
Monkman, A., Adams, P., Milton, A., Scully, M., Pomfret, S., & Kenwright, A. (1993). WHAT DO RING ROTATIONS DO FOR POLYANILINE. Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 234, 729-737

Polyaniline in its many forms has potential optical data storage possibilities along with its known electrical properties. Here we discuss the role which mechanical motions of the polymer chain play in the delocalisation of electrons on the backbone,... Read More about WHAT DO RING ROTATIONS DO FOR POLYANILINE.

POLY(N-METHYLISOINDOLE), A COLOR NEUTRAL CONDUCTING ORGANIC POLYMER (1993)
Journal Article
Hanly, N., Bloor, D., Monkman, A., Bonnett, R., & Ribo, J. (1993). POLY(N-METHYLISOINDOLE), A COLOR NEUTRAL CONDUCTING ORGANIC POLYMER. Synthetic Metals, 60(3), 195-198

Poly(N-methylisoindole) is prepared by chemical and electrochemical methods and its properties are reported: the polymer shows interesting optical, electrochromic and conducting behaviour. It shows a colour change (golden to near colourless) on oxida... Read More about POLY(N-METHYLISOINDOLE), A COLOR NEUTRAL CONDUCTING ORGANIC POLYMER.

A COMPARATIVE-STUDY OF POLYANILINE FILMS USING THERMAL ANALYSES AND IR SPECTROSCOPY (1993)
Journal Article
Milton, A., & Monkman, A. (1993). A COMPARATIVE-STUDY OF POLYANILINE FILMS USING THERMAL ANALYSES AND IR SPECTROSCOPY. Journal of Physics D: Applied Physics, 26(9), 1468-1474

We have used dynamic mechanical and dielectric thermal analyses together with infrared spectroscopy to identify molecular motions in polyaniline films cast from emeraldine base powder dissolved in the solvent N-methyl-2-pyrrolidinone (NMP). These rel... Read More about A COMPARATIVE-STUDY OF POLYANILINE FILMS USING THERMAL ANALYSES AND IR SPECTROSCOPY.

THERMAL-ANALYSIS OF POLYANILINE FREE STANDING FILMS (1993)
Journal Article
Milton, A., & Monkman, A. (1993). THERMAL-ANALYSIS OF POLYANILINE FREE STANDING FILMS. Synthetic Metals, 57(1), 3571-3575

We report on Dynamic Mechanical Thermal Analysis (DMTA) studies of free standing films of polyaniline. These films were cast from chemically synthesised emeraldine base dissolved in the solvent N-methyl-2-pyrrolidinone (NMP). Thermal scans show a sof... Read More about THERMAL-ANALYSIS OF POLYANILINE FREE STANDING FILMS.

LANGMUIR-BLODGETT-FILMS OF POLYANILINE (1993)
Journal Article
Agbor, N., Petty, M., Monkman, A., & Harris, M. (1993). LANGMUIR-BLODGETT-FILMS OF POLYANILINE. Synthetic Metals, 57(1), 3789-3794

Thin layers of polyaniline have been successfully deposited by the Langmuir-Blodgett technique onto a variety of substrates. The in-plane dc conductivity of the as-deposited material was found to be 10(-8) Scm-1; this increased to a maximum value of... Read More about LANGMUIR-BLODGETT-FILMS OF POLYANILINE.

MUON STUDIES OF CONDUCTING POLYMERS (1993)
Journal Article
Pratt, F., Hayes, W., Mitchell, G., Rossi, B., Kiani, M., Malhotra, B., …Monkman, A. (1993). MUON STUDIES OF CONDUCTING POLYMERS. Synthetic Metals, 55(1), 677-684

Muon spin relaxation has been measured in longitudinal and zero field configurations for a number of conducting polymers in the polypyrrole and polyaniline families. The measurements have been made as a function of temperature down to 11K and in appl... Read More about MUON STUDIES OF CONDUCTING POLYMERS.

OPTICAL-PROPERTIES OF POLYANILINE THIN-FILMS (1993)
Journal Article
Scully, M., Petty, M., & Monkman, A. (1993). OPTICAL-PROPERTIES OF POLYANILINE THIN-FILMS. Synthetic Metals, 55(1), 183-187

We report the preparation and properties of ultra-thin films of polyaniline formed by spinning. The polyaniline, dissolved in N-methyl-2-pyrrolidinone, was found to behave as a non-Newtonian fluid. However, high quality films could be produced under... Read More about OPTICAL-PROPERTIES OF POLYANILINE THIN-FILMS.

SOLUTION-STATE NMR-STUDIES OF POLYANILINE STRUCTURE (1993)
Journal Article
Kenwright, A., Feast, W., Adams, P., Milton, A., Monkman, A., & Say, B. (1993). SOLUTION-STATE NMR-STUDIES OF POLYANILINE STRUCTURE. Synthetic Metals, 55(1), 666-671

We present the results of solution state NMR investigations of the structure of polyaniline in various oxidation states. The resolution obtained is much higher than that available from solid state techniques. We confirm that the majority of the mater... Read More about SOLUTION-STATE NMR-STUDIES OF POLYANILINE STRUCTURE.

A comparison of the molecular weights of polyaniline samples obtained from gel permeation chromatography and solid-state nitrogen - 15 nuclear magnetic resonance spectroscopy. (1993)
Journal Article
Adams, P., Monkman, A., & Apperley, D. (1993). A comparison of the molecular weights of polyaniline samples obtained from gel permeation chromatography and solid-state nitrogen - 15 nuclear magnetic resonance spectroscopy. Synthetic Metals, 55(1), 725-730. https://doi.org/10.1016/0379-6779%2893%2991019-x

Polyaniline samples of different molecular weights were prepared using aniline enriched with 15N. Molecular weights were determined by gel permeation chromatography. 15N NMR spectroscopy confirmed that both samples were in the emeraldine oxidation st... Read More about A comparison of the molecular weights of polyaniline samples obtained from gel permeation chromatography and solid-state nitrogen - 15 nuclear magnetic resonance spectroscopy..

A comparison of the molecular weights of polyaniline samples obtained from gel permeation chromatography and solid state 15N n.m.r. spectroscopy. (1993)
Journal Article
Adams, P., Monkman, A., & Apperley, D. (1993). A comparison of the molecular weights of polyaniline samples obtained from gel permeation chromatography and solid state 15N n.m.r. spectroscopy. Polymer, 34(2), 328-332. https://doi.org/10.1016/0032-3861%2893%2990085-o

Polyaniline samples of different molecular weights were prepared using aniline enriched with 15N. Molecular weights were determined by gel permeation chromatography (g.p.c.). 15N n.m.r. spectroscopy confirmed that both samples were in the emeraldine... Read More about A comparison of the molecular weights of polyaniline samples obtained from gel permeation chromatography and solid state 15N n.m.r. spectroscopy..

SOLUTION-STATE C-13 NUCLEAR-MAGNETIC-RESONANCE STUDIES OF POLYANILINE (1992)
Journal Article
Kenwright, A., Feast, W., Adams, P., Milton, A., Monkman, A., & Say, B. (1992). SOLUTION-STATE C-13 NUCLEAR-MAGNETIC-RESONANCE STUDIES OF POLYANILINE. Polymer, 33(20), 4292-4298

Solution-state C-13 nuclear magnetic resonance spectra are presented for the emeraldine base and leucoemeraldine base forms of polyaniline. The bulk of the leucoemeraldine base sample gives a simple two-line spectrum, which is readily assignable. The... Read More about SOLUTION-STATE C-13 NUCLEAR-MAGNETIC-RESONANCE STUDIES OF POLYANILINE.