Skip to main content

Research Repository

Advanced Search

Outputs (280)

Oxidized model compounds of polyaniline studied by resonance Raman spectroscopy (1997)
Journal Article
Boyer, M., Quillard, S., Louarn, G., Lefrant, S., Rebourt, E., & Monkman, A. (1997). Oxidized model compounds of polyaniline studied by resonance Raman spectroscopy. Synthetic Metals, 84(1-3), 787-788

The emeraldine salt structure, the only conducting form of polyaniline is not well-known. This is why, we have carried out resonance Raman spectra (RRS) on one of these models compounds oxidized electrochemically in-situ in order to elucidate the ele... Read More about Oxidized model compounds of polyaniline studied by resonance Raman spectroscopy.

Electroabsorption studies of polyaniline (1997)
Journal Article
Pomfret, S., Rebout, E., Abell, L., & Monkman, A. (1997). Electroabsorption studies of polyaniline. Synthetic Metals, 84(1-3), 729-732

We present the results of electroabsorption measurements of emeraldine base and a related phenyl capped tetramer, both spun from NMP. A comparison of the data of the two materials shows many similarities, indicating that the electronic structures are... Read More about Electroabsorption studies of polyaniline.

Magnetoconductance of 60% PANI-CSA films (1997)
Journal Article
Chow, K., Jestadt, T., Gee, P., Blundell, S., Singleton, J., Hayes, W., & Monkman, A. (1997). Magnetoconductance of 60% PANI-CSA films. Synthetic Metals, 84(1-3), 817-818

We report magnetoconductance measurements on two metallic 60 % PANI-CSA films at fields of up to 15 Tesla. Our results are generally consistent with measurements on other conducting PANI-CSA samples reported by Menon et. al.(1) at lower magnetic fiel... Read More about Magnetoconductance of 60% PANI-CSA films.

Mechanical properties of oriented emeraldine base polyaniline (1997)
Journal Article
Laughlin, P., & Monkman, A. (1997). Mechanical properties of oriented emeraldine base polyaniline. Synthetic Metals, 84(1-3), 765-766

The mechanical properties of high molecular weight (similar to 130 000 Daltons) emeraldine base have been investigated as a function of elongation. The tensile strength is found to increase by almost one order of magnitude for samples stretched to 50... Read More about Mechanical properties of oriented emeraldine base polyaniline.

Polyaniline oligomers; Synthesis and characterisation (1997)
Journal Article
Rebourt, E., Joule, J., & Monkman, A. (1997). Polyaniline oligomers; Synthesis and characterisation. Synthetic Metals, 84(1-3), 65-66

Several poly(p-aniline) leucoemeraldine base oligomers were characterised by C-13 NMR spectroscopy. The uncapped trimer and tetramer were obtained by a new method involving a coupling step with copper as a catalyst in DMF. The phenylcapped tetramer,... Read More about Polyaniline oligomers; Synthesis and characterisation.

Studies of stretched predoped polyaniline films (1997)
Journal Article
Abell, L., Pomfret, S., Adams, P., Middleton, A., & Monkman, A. (1997). Studies of stretched predoped polyaniline films. Synthetic Metals, 84(1-3), 803-804

The electrical conductivity of two isotropic 50% CSA doped polyaniline films were measured to be (300+/-30) S/cm. Four samples were cut from one isotropic film and drawn to various extensions at 150C. An additional four samples were cut from the othe... Read More about Studies of stretched predoped polyaniline films.

Solution state doping studies of the polyemeraldine camphor sulphonic acid system (1997)
Journal Article
Monkman, A., Rebourt, E., & Petr, A. (1997). Solution state doping studies of the polyemeraldine camphor sulphonic acid system. Synthetic Metals, 84(1-3), 761-762

Solution state protonation (doping) studies have been made using polyemeraldine and the phenyl capped tetramer oligomer of emeraldine. The spectra show in detail the changes which occur in the electronic structure of these materials upon doping and i... Read More about Solution state doping studies of the polyemeraldine camphor sulphonic acid system.

Low temperature synthesis of high molecular weight polyaniline using dichromate oxidant. (1997)
Journal Article
Adams, P., Abell, L., Middleton, A., & Monkman, A. (1997). Low temperature synthesis of high molecular weight polyaniline using dichromate oxidant. Synthetic Metals, 84(1-3), 61-62

Aniline was polymerised at temperatures of between 0 and -35 degrees C in acid solution containing lithium chloride and using dichromate oxidant. The optimum temperature to give high molecular weight polyaniline in the emeraldine oxidation state in g... Read More about Low temperature synthesis of high molecular weight polyaniline using dichromate oxidant..

Muon studies of spin dynamics in polyaniline (1997)
Journal Article
Pratt, F., Ishida, K., Nagamine, K., Pattenden, P., Jestadt, T., Chow, K., …Monkman, A. (1997). Muon studies of spin dynamics in polyaniline. Synthetic Metals, 84(1-3), 943-944

The muon is a valuable probe of spin excitations in polymers, as the muon implantation process itself generates a lest excitation whose dynamical properties can be studied via the evolution of the muon spin polarisation. We report here studies on und... Read More about Muon studies of spin dynamics in polyaniline.

Thermal studies of doped polyaniline (1997)
Journal Article
Abell, L., Pomfret, S., Adams, P., & Monkman, A. (1997). Thermal studies of doped polyaniline. Synthetic Metals, 84(1-3), 127-128

The thermal behaviour of camphorsulphonic acid doped polyaniline was studied using T.G.A, D.S.C. and D.M.T.A methods in an attempt to find the best processing conditions.