Enhancement of the electrical conductivity of polypyrrole film by stretching: Influence of the polymerization conditions

Hagiwara, Toru; Hirasaka, Masao; Sato, Kyosuke; Yamaura, M.

doi:10.1016/0379-6779(90)90057-r

Cited by 108 publications

(21 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Figure 9 shows the ESR spectra of PPy-DBS-BF, indicating typical spectra like other conducting polymers of which conduction is dominated by polaron. 15,19 It was confirmed that pol- arons were formed as charge carrier in soluble PPy-DBS-BF.…”

Section: Esrsupporting

confidence: 66%

Synthesis and characterization of soluble polypyrrole with improved electrical conductivity

Lee

Ahn

et al. 2002

J of Applied Polymer Sci

View full text Add to dashboard Cite

Polypyrroles doped with two dopants were prepared by chemical polymerization in aqueous solutions of pyrrole monomer. The solutions contained dodecylbenzenesulfonic acid (DBSA) as a dopant, tetraethylammonium tetrafluoroborate (TEABF 4 ) as a codopant, and ammonium persulfate (APS) as an oxidant. The PPy composites [polypyrrole-dodecylbenzenesulfonates (PPy-DBS) codoped with tetrafluoroborate (BF 4 Ϫ )-PPy-DBS-BF] were soluble in m-cresol, NMP, and conditionally soluble in chloroform. Cyclic voltammetry was measured to know the electrochemical property of PPy-DBS-BF. The maximum electrical conductivity of room temperature for PPy-DBS-BF is 1.18 s/cm, which is greatly higher than that of polypyrrole doped with DBS Ϫ (0.04 s/cm). The composition and structural characterization of PPy-DBS-BF were inferred from elemental analysis, nuclear magnetic resonance, and Fourier transform infrared spectroscopy. Scanning electron microscopy was performed to know the morphology of PPy-DBS-BF. The results of UV-Vis spectra and electron spin resonance measurements showed that polaron and bipolaron existed as charge carrier of soluble PPy-DBS-BF. From the temperature dependence of the electrical conductivity, it was suggested that possible conduction mechanism for soluble PPy-DBS-BF should be hopping conduction.

show abstract

Section: Esrsupporting

confidence: 66%

Synthesis and characterization of soluble polypyrrole with improved electrical conductivity

Lee

Ahn

et al. 2002

J of Applied Polymer Sci

View full text Add to dashboard Cite

show abstract

“…PEDOT films polymerized under similar conditions, using TBACF 3 SO 3 in a PC electrolyte, showed mainly cation-driven actuation, again resulting from triflate anions immobilized during electropolymerization with practically no actuation observed upon oxidation [4,10], similar to the behaviour seen with PEDOT/PSS [11] or PPy/DBS [12] where the associated cations determined the actuation, while dual ion movement was observed with PEDOT/TBAPF 6 films in PC [13]. The actuation properties of conducting polymer films can be controlled through the choice of polymer [14] and polymerization conditions, such as temperature [15] and electrolyte concentration [16,17], which influence the structure of the conducting polymer network. Electrochemical polymerization in the case of galvanostatic (constant current), potentiodynamic (constant scan rate) or potentiostatic (constant potential) conditions leads to different conducting polymer structures, all of which influence actuation properties [18,19].…”

Section: Introductionmentioning

confidence: 71%

Effect of polymerization potential on the actuation of free standing poly-3,4-ethylenedioxythiophene films in a propylene carbonate electrolyte

Bowmaker

Kilmartin

Travaš-Sejdić

2010

Electrochimica Acta

View full text Add to dashboard Cite

“…12 In the case of polypyrrole, many studies have provided a wealth of information with regards to the enhancement of electrical properties through the synthesis of highly oriented samples. 13 The information concerning sample preparation could be used for synthesizing appropriate materials for investigating the nonlinear optical properties of polypyrrole. However, the latter area of research remains largely unexplored and warrants further study.…”

Section: Introductionmentioning

confidence: 99%

Ab initio polarizability study of polypyrrole

Toto

Melo

et al. 1995

The Journal of Chemical Physics

View full text Add to dashboard Cite

The static polarizability and first hyperpolarizability of the water trimer anion: Ab initio study Ab initio study of the dipole polarizability and the first hyperpolarizability of heterocyclics AIP Conf. Proc. 330, 74 (1995); 10.1063/1.47853 Ab initio studies of the polarizabilities of retinal analogsThe longitudinal polarizability, ␣ zz , and second order hyperpolarizability, ␥ zzzz , of the (C 4 H 3 N͒ R H 2 oligopyrroles, where Rϭ1Ϫ9, are determined at the Hartree-Fock ͑HF͒ level of theory using a 6-31G basis set. The effect of electron correlation is taken into account using Moller-Plesset perturbation theory through second order for the Rϭ1Ϫ5 oligopyrroles. Methods for extrapolation to the infinite polymer values are explored. The convergence behavior of the correlated results as a ratio with the corresponding HF values may indicate that a scaled HF procedure could be appropriate for finding correlated estimates to the infinite polymer property values. We also propose a generalized finite field recipe which can easily be used in conjunction with popular black-box electronic structure programs for determining molecular polarizabilities through second order. The ␣ zz and ␥ zzzz values obtained from using this procedure on a variety of polyacetylene and polypyrrole oligomers are in excellent agreement with those derived through analytical procedures.

show abstract

Enhancement of the electrical conductivity of polypyrrole film by stretching: Influence of the polymerization conditions

Cited by 108 publications

References 9 publications

Synthesis and characterization of soluble polypyrrole with improved electrical conductivity

Synthesis and characterization of soluble polypyrrole with improved electrical conductivity

Effect of polymerization potential on the actuation of free standing poly-3,4-ethylenedioxythiophene films in a propylene carbonate electrolyte

Ab initio polarizability study of polypyrrole

Contact Info

Product

Resources

About