Nanodiamond-mediated crystallization in fibers of PANI nanocomposites produced by template-free polymerization: Conductive and thermal properties of the fibrillar networks

Tamburri, Emanuela; Guglielmotti, Valeria; Orlanducci, S.; Terranova, Maria Letizia; Sordi, Daniela; Passeri, Daniele; Matassa, Roberto; Rossi, M.

doi:10.1016/j.polymer.2012.07.014

Cited by 52 publications

(53 citation statements)

References 66 publications

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“…In this work, first we review some interesting applications of this emerging and fascinating technique and then we show our preliminary results regarding the in situ electrodeposition of polyaniline (PANI), one of the most attractive conducting polymers (CP) [10][11][12][13][14][15]. …”

Section: Introductionmentioning

confidence: 99%

Electrochemical atomic force microscopy: In situ monitoring of electrochemical processes

Reggente

Passeri

Rossi

et al. 2017

AIP Conference Proceedings

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Abstract. The in-situ electrodeposition of polyaniline (PANI), one of the most attractive conducting polymers (CP), has been monitored performing electrochemical atomic force microscopy (EC-AFM) experiments. The electropolymerization of PANI on a Pt working electrode has been observed performing cyclic voltammetry experiments and controlling the evolution of current flowing through the electrode surface, together with a standard AFM image. The working principle and the potentialities of this emerging technique are briefly reviewed and factors limiting the studying of the in-situ electrosynthesis of organic compounds discussed.

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Section: Introductionmentioning

confidence: 99%

Electrochemical atomic force microscopy: In situ monitoring of electrochemical processes

Reggente

Passeri

Rossi

et al. 2017

AIP Conference Proceedings

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“…[14][15][16][17] In previous studies, by adopting the above-mentioned AFM techniques (i.e., AFM nanoindentation, CR-AFM, and TH-AFM), we deeply analyzed the mechanical properties of hybrid nanocomposite materials based on conductive polymers, i.e., polyaniline (PANI) and poly (3,4-ethylenedioxythiophene) (PED-OT) filled with nanodiamond (ND) particles. 5,[17][18][19][20][21][22] In particular, we have pointed out that ND is able to induce a high structural order of the polymerchains that organize themselves in the form of nanofibrils, nanoglobules, or nanoparticles depending on the experimental conditions of the synthesis. On such materials, we performed accurate material characterizations at the nanoscale.…”

Section: Introductionmentioning

confidence: 99%

“…On such materials, we performed accurate material characterizations at the nanoscale. 5,17,18,21,22 Considering the results obtained so far, in the current study we investigated how the mechanical properties of the single nanostructures can rule the surface mechanical properties of a macroscale sample, especially when it consists of a dense and forced packing of the individual nanostructures. For this purpose, we first synthesized PANI and polyaniline doped with nanodiamond particles (PANI-ND) by a precipitation method, and then we prepared PANI and PANI-ND tablets by a pressing process conducted at 200 bar.…”

Section: Introductionmentioning

confidence: 99%

Atomic Force Microscopy Techniques for Nanomechanical Characterization: A Polymeric Case Study

Reggente

Rossi

Angeloni

et al. 2015

JOM

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Atomic force microscopy (AFM) is a versatile tool to perform mechanical\ud characterization of surface samples at the nanoscale. In this work, we review\ud two of such methods, namely contact resonance AFM (CR-AFM) and torsional\ud harmonics AFM (TH-AFM). First, such techniques are illustrated and their\ud applicability on materials with elastic moduli in different ranges are discussed,\ud together with their main advantages and limitations. Then, a case\ud study is presented in which we report the mechanical characterization using\ud both CR-AFM and TH-AFM of polyaniline and polyaniniline doped with\ud nanodiamond particles tablets prepared by a pressing process. We determined\ud the indentation modulus values of their surfaces, which were found in fairly\ud good agreement, thus demonstrating the accuracy of the techniques. Finally,\ud the determined surface elastic moduli have been compared with the bulk ones\ud measured through standard indentation testin

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“…Besides, the morphology of the final structure can hardly be controlled. 25 The morphology of nanometric deposits of the polymer is a parameter of the utmost importance, since it has been shown to play a crucial role in the efficiency of various devices wherein they are employed. For instance, in organic solar cells it has been demonstrated that rough surfaces and the presence of cavities may increase the risk of cell short-circuit.…”

Section: Introductionmentioning

confidence: 99%

Electro-synthesis and Characterization of Polymer Nanostructures from Terthiophene Using Silica Mesoporous Films as Template

et al. 2014

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Nanostructures of poly(2,2′:5′,2′′-terthiophene) have been synthesized using only electrochemical techniques. To this end, a porous silica film modified platinum disc was used as working electrode (Pt|(SiO 2 ) n ). The silica coating acts as a template so that the subsequent electro-polymerization occurs in their confined space pores, perpendicular to the electrodic surface. The current response of the obtained polymeric deposit is much greater than that exhibited by the solid massive polymer (generated under identical conditions but without template), accounting for the significant increase of the p-doping/undoping charge. Template removal was accomplished by treating the deposits with HF solutions. It was demonstrated that as the template is removed, the charge of the nanostructured electrodes increases even more. Electro-deposit characterization was supplemented using transmission electron microscopy, TEM, and FT-Raman spectroscopy, which revealed the obtaining of electrodes modified with polymeric nanostructures vertically aligned upon the electrode surface. Thus, a methodology employing solely electrochemical techniques that enables the obtainment of polymeric nanodeposits directly on the electrode surface was proposed. This approach allows foreseeing a significant progress in applications wherein these materials are useful, since this methodology, first tested for polythiophene, is applicable to various starting units capable of being electro-synthesized.

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Nanodiamond-mediated crystallization in fibers of PANI nanocomposites produced by template-free polymerization: Conductive and thermal properties of the fibrillar networks

Cited by 52 publications

References 66 publications

Electrochemical atomic force microscopy: In situ monitoring of electrochemical processes

Electrochemical atomic force microscopy: In situ monitoring of electrochemical processes

Atomic Force Microscopy Techniques for Nanomechanical Characterization: A Polymeric Case Study

Electro-synthesis and Characterization of Polymer Nanostructures from Terthiophene Using Silica Mesoporous Films as Template

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