Relaxation of polythiophenes bridged by alkyl chains

Mangold, Klaus‐Michael; Morgenschweis, Konrad; Jüttner, K.

doi:10.1016/s0013-4686(98)00327-2

Cited by 12 publications

(7 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They were considered anomalous because deeper reduced initial states (higher concentrations of the reactant) give subsequent slower oxidation rates, contradicting the chemical kinetic rules. They were attributed to memory effects [75,82,83], relaxation effects [84][85][86][87], first cycles effects [88], and so on.…”

Section: Reaction-driven Structural Changes From Coulovoltammetric Rementioning

confidence: 99%

Electrochemical synthesis and characterization of self-supported polypyrrole-DBS-MWCNT electrodes

Otero

Schumacher

2016

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

The electrochemical conditions (electrolyte potential window, monomeric oxidation) for the synthesis of polypyrrole-dodecylbenzenesulfonate-multiwalled carbon nanotube (PPy-DBS-MWCNT) composite were determined. Thick PPy-DBS-MWNT films were electrogenerated and peeled off from the working electrode. Selfsupported PPy-DBS-MWCNT electrodes were fabricated. The morphology of the film was analyzed by SEM. Self-supported electrodes were characterized by potential cycling and by consecutive square potential waves in NaClO 4 aqueous solution with different cathodic potential limits. Higher reduced structures (the current never drops to zero) are obtained and analyzed from voltammetric responses until rising cathodic potential limits (up to −5 V). For high cathodic potentials (N−1 V) a slow hydrogen evolution coexists with the film reduction, as revealed from coulovoltammetric (charge-potential) responses, and the reduction rate decreases without significant polymeric degradation. Degradation of the material electroactivity in NaClO 4 is initiated by anodic overpotentials beyond 1.2 V. Both, oxidation and reduction chronoamperometric responses prove the presence of nucleation processes, most significant during oxidation. Chronocoulometric responses illustrate slower oxidation rates from deeper reduced initial states. The electrochemical responses are explained by reaction-driven conformational and structural changes that are clarified by the coulovoltammetric responses.

show abstract

Section: Reaction-driven Structural Changes From Coulovoltammetric Rementioning

confidence: 99%

Electrochemical synthesis and characterization of self-supported polypyrrole-DBS-MWCNT electrodes

Otero

Schumacher

2016

Journal of Electroanalytical Chemistry

View full text Add to dashboard Cite

show abstract

“…Conducting polymers have already attracted attention for decades since these materials cover a wide range of devices such as actuators, optoelectronic devices, solar cells etc. [55][56][57][58][59][60] Gels of conjugated polymers, cross-linked with chemical bonds [61][62][63][64][65][66][67][68] or physical nodes (crystallites or aggregates), [69][70][71][72] have been intensively investigated because the materials exhibit the redox responsive mechanical and swelling properties (Fig. 13) of gels added to the specic charge transport properties of conjugated polymers.…”

Section: Conjugated Polymer Based Redox Responsive Systemsmentioning

confidence: 99%

Redox active gels: synthesis, structures and applications

et al. 2013

View full text Add to dashboard Cite

“…There has been a limited number of publications on cross-coupled dimers of thiophene, in which the main dimers in question were linked through the 3-position such as α,ω-bis(thienyl)alkanes. These α,ω-bis(thienyl)alkane molecules, when polymerised, have been reported to have good conductivity and are highly flexible [22][23][24][25][26][27][28]. Work conducted in our laboratory has shown that the crosslinked pyrrole derivative α,ωbis(pyrrolyl)alkanes ( Fig.1), also produced conductive, highly flexible, polymer films [29] and in this publication we detail the conditions required for the coating of woven wool with poly(α,ω-bis(pyrrolyl)alkanes) to produce highly flexible conductive textiles.…”

Section: Recent Publications On Conducting Polypyrrole Coated Yarns Amentioning

confidence: 99%

Conductive poly(α,ω-bis(3-pyrrolyl)alkanes)-coated wool fabrics

2007

View full text Add to dashboard Cite

Crosslinked poly(α-ω-bis(3-pyrrolyl)alkanes) were directly applied to woven wool substrates by either chemical, vapour or mist polymerization methods. Choice of dopant could greatly improve the surface resistance. The optimum coating on textiles with the lowest surface resistance, highest colour-fastness and stability was achieved using a mist polymerization method with 1,8-bis(pyrrolyl)octane, iron (III) chloride (FeCl 3) as the oxidant and p-toluene sulfonic acid sodium salt (pTSA) as the dopant.

show abstract

Relaxation of polythiophenes bridged by alkyl chains

Cited by 12 publications

References 10 publications

Electrochemical synthesis and characterization of self-supported polypyrrole-DBS-MWCNT electrodes

Electrochemical synthesis and characterization of self-supported polypyrrole-DBS-MWCNT electrodes

Redox active gels: synthesis, structures and applications

Conductive poly(α,ω-bis(3-pyrrolyl)alkanes)-coated wool fabrics

Contact Info

Product

Resources

About