Study of conductivity of polypyrrol-poly(vinyl alcohol) composites obtained photochemically

Campomanes, R.; Bittencourt, S.E.; Campos, J. S. C.

doi:10.1016/s0379-6779(98)01435-0

Cited by 21 publications

(7 citation statements)

References 8 publications

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“…Conducting polymers (CPs) are organic materials that possess optical, magnetic, and electrical properties [1,2,3]. CPs can be synthesized in many different ways, such as pyrolysis, photochemical, plasma, chemical and electrochemical polymerization [3,4,5,6,7,8]. Among these methods, chemical and electrochemical polymerization methods have been most extensively used for CP synthesis.…”

Section: Introductionmentioning

confidence: 99%

Chemical and Electrochemical Synthesis of Polypyrrole Using Carrageenan as a Dopant: Polypyrrole/Multi-Walled Carbon Nanotube Nanocomposites

et al. 2018

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In this article, iota-carrageenan (IC) and kappa-carrageenan (KC) are used as dopants for the chemical and electrochemical synthesis of polypyrrole (PPy). The composites of chemically synthesized PPy with multi-walled carbon nanotubes (MWNTs) were prepared using an in situ technique. Both the dialyzed and non-dialyzed IC and KC were used as dopants for electrochemical polymerization of pyrrole. Chemically synthesized PPy and PPy/MWNTs composites were studied by ultraviolet visible (UV-Vis) absorption spectra to investigate the effect of the concentration and the incorporation of MWNTs. In addition, the electrical, thermal, mechanical, and microscopic characterizations of these films were performed to examine the effect of the dopants and MWNTs on these properties, along with their surface morphology. The films of electrochemically polymerized PPy were characterized using UV-Vis absorption spectra, scanning electron microscopy, and cyclic voltammetry (CV). The results were then compared with the chemical polymerized PPy.

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Section: Introductionmentioning

confidence: 99%

Chemical and Electrochemical Synthesis of Polypyrrole Using Carrageenan as a Dopant: Polypyrrole/Multi-Walled Carbon Nanotube Nanocomposites

et al. 2018

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“…The conducting polymers most used in hybrid materials, as blends or composites, are polypyrrol , polythyophene , polyaniline, and their derivatives . These polymers are used due to their good thermal and environmental stability.…”

Section: Introductionmentioning

confidence: 99%

Antistatic-reinforced biocomposites of polyamide-6 and polyaniline-coated curauá fibers prepared on a pilot plant scale

et al. 2013

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Curauá fibers were used with success as a reinforcing agent in polyamide‐6, however, for several applications, an antistatic dissipation property is also desirable and the incorporation of an intrinsically conducting polymer is a suitable way to promote this. The novelty of this work is the simultaneous introduction of these two properties, antistatic and reinforcement, using one filler, obtained by depositing polyaniline on the surface of short curauá fibers. Nearly 5–30 wt% of these modified fibers were dispersed by extrusion in polyamide‐6, the composites were injection molded and characterized by electrical, mechanical, morphological, and rheological properties. The tensile strength of the polyamide‐6 composites reinforced with 5 and 30 wt% of polyaniline coated curauá fibers, was 56% higher and 23% lower than the values obtained for pure polyamide‐6, respectively. Also, the composite reinforced with 5 wt% of fibers, when processed with lower shearing rates, showed conductivity in the range of antistatic materials, 4 μS cm−1. Scanning electronic microscopy and infrared spectroscopy showed an improvement in interfacial adhesion in PA‐6/CF‐PAni composites. The composite prepared with 5 wt% of polyaniline coated curauá fibers gave the best balance between the electrical and the mechanical properties. Extrusion and injection molding methods used here are suitable for continuous large scale production. POLYM. COMPOS., 34:1081–1090, 2013. © 2013 Society of Plastics Engineers

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“…Moreover, swelling and shrinkage may occur during doping/dedoping of the active fi lm, leading to mechanical degradation of the electrodes and fading of the electrochemical performance during cycling. Such problems have been partly overcome in the case of ECPs by adding an insulating polymer with good mechanical properties such as poly-N-vinylalcohol [78], but the electrical conductivity of the composite material is lower than in the pristine ECP. Adding carbon [79], and especially CNTs, is the most interesting solution which has been proposed to improving the mechanical and electrochemical properties of the electrodes [5,29].…”

Section: Nanotubes As Backbone Of Pseudocapacitive Composite Electrodesmentioning

confidence: 99%

Electrical Double-Layer Capacitors and Pseudocapacitors

Béguin¹,

Raymundo-Piñero²,

Frąckowiak³

2009

Advanced Materials and Technologies

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Study of conductivity of polypyrrol-poly(vinyl alcohol) composites obtained photochemically

Cited by 21 publications

References 8 publications

Chemical and Electrochemical Synthesis of Polypyrrole Using Carrageenan as a Dopant: Polypyrrole/Multi-Walled Carbon Nanotube Nanocomposites

Chemical and Electrochemical Synthesis of Polypyrrole Using Carrageenan as a Dopant: Polypyrrole/Multi-Walled Carbon Nanotube Nanocomposites

Antistatic-reinforced biocomposites of polyamide-6 and polyaniline-coated curauá fibers prepared on a pilot plant scale

Electrical Double-Layer Capacitors and Pseudocapacitors

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