Conductive copolymers of polyaniline, polypyrrole and poly(dimethylsiloxane)

Çakmak, Güliz; Küçükyavuz, Zühal; Küçükyavuz, Savaş

doi:10.1016/j.synthmet.2005.02.019

Cited by 58 publications

(29 citation statements)

References 23 publications

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“…In the past, there was a difficulty to make a copolymer of aniline and pyrrole because of synthesis method for each of them [1]- [2]. Now, there are two main ways to synthesize a copolymer of aniline and pyrrole by chemical [3]- [7] or electrochemical [8]- [10]methods. Chemical oxidation process has been checked in previous studies where ammonium peroxydisulfate solution (APS) is used as oxidant [3]- [7].…”

Section: Introductionmentioning

confidence: 99%

In-situ Polymerization of Polyaniline/Polypyrrole Copolymer using Different Techniques

Hammad

Noby

Elkady

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. The morphology and surface area of the poly(aniline-co-pyrrole) copolymer (PANPY) are important properties which improve the efficiency of the copolymer in various applications. In this investigation, different techniques were employed to produce PANPY in different morphologies. Aniline and pyrrole were used as monomers, and ammonium peroxydisulfate (APS) was used as an oxidizer with uniform molar ratio. Rapid mixing, dropwise mixing, and supercritical carbon dioxide (ScCO 2 ) polymerization techniques were appointed. The chemical structure, crystallinity, porosity, and morphology of the composite were distinguished by Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), Brunauer, Emmett and Teller (BET) analysis, and transmission electron microscopy (TEM) respectively. The characterization tests indicated that the polyaniline/polypyrrole copolymer was successfully prepared with different morphologies. Based on the obtained TEM, hollow nanospheres were formed using rapid mixing technique with acetic acid that have a diameter of 75 nm and thickness 26 nm approximately. Also, according to the XRD, the produced structures have a semi-crystalline structure. The synthesized copolymer with ScCO 2 -assisted polymerization technique showed improved surface area (38.1 m 2 /g) with HCl as dopant.

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Section: Introductionmentioning

confidence: 99%

In-situ Polymerization of Polyaniline/Polypyrrole Copolymer using Different Techniques

Hammad

Noby

Elkady

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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“…occurring at about 200 ºC is attributed to degradation of PMAS and loss of SO 3 H groups in the polymer chains as reported for pure PMAS. 23,24 The mass loss of PMAS over the temperature range between 200 to 300 ºC was 30.8 %, compared to only 4.5 % mass loss found for PPy/pTS. The difference of the mass loss 10 results from the lower decomposition temperature of the PMAS.…”

Section: Resultsmentioning

confidence: 90%

Polypyrrole doped with redox-active poly(2-methoxyaniline-5-sulfonic acid) for lithium secondary batteries

et al. 2013

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Polypyrrole is a promising electrode material for flexible/bendable energy storage devices due to its inherent fast redox switching, mechanical flexibility, easy processability and being environmentally benign. However, its low attainable capacity limits its practical applications. Here, we synthesise a polypyrrole/ poly(2-methoxyaniline-5-sulfonic acid) (PPy/PMAS) composite by incorporating redox-active PMAS into a PPy matrix via an electropolymerization method. For comparison, polypyrrole containing the electrochemically inert dopant p-toluenesulfonate (PPy-pTS) was prepared under the same conditions. The resultant PPy/PMAS film shows greatly improved electrochemical properties by harnessing the contribution from PMAS, i.e. higher specific capacity, better rate capability and improved cycling stability when used as a cathode material in a lithium secondary battery. It delivers a high specific capacity of 120.6 mAh g-1 at a current density of 0.1 A g-1, and retains about 88.5% of the capacity (106.7 mAh g-1) over 800 consecutive cycles at a high current density of 1 A g-1. Polypyrrole is a promising electrode material in flexible/bendable energy storage devices due to its inherent fast redox switching, mechanical flexibility, easy processability and being environmentally benign. However, its low attainable capacity limits its practical applications. Here, we synthesise polypyrrole/poly(2-methoxyaniline-5-sulfonic acid) (PPy/PMAS) composite by incorporating redoxactive PMAS into a PPy matrix via an electropolymerization method. For comparison, polypyrrole 10 containing the electrochemically inert dopant p-toluenesulfonate anion (PPy-pTS) is prepared under the same conditions. The resultant PPy/PMAS film shows greatly improved electrochemical properties by harnessing the contribution from PMAS, i.e. higher specific capacity, better rate capability and cycling stability when used as a cathode material in a lithium secondary battery. It delivers a high specific capacity of 120.6 mAh g -1 at a current density of 0. ) over 800 consecutive cycles at a high current density of 1 A g -1.

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“…Conductive co-polymers have been the subject of many studies in recent years in the fields of design sensors [1][2][3][4], battery materials [2,3] and electronic devices [2,3,5] due to their electrical [6,7], electrochemical and optical properties [6,7]. Polypyrroles (PPy) with high conductivity [4,8] and environmental stability [4,7,8], and poly(para-phenylene)s (PPP) with excellent mechanical [8][9][10][11][12] and thermal stability [9][10][11], are widely studied.…”

Section: Introductionmentioning

confidence: 99%

“…Polypyrroles (PPy) with high conductivity [4,8] and environmental stability [4,7,8], and poly(para-phenylene)s (PPP) with excellent mechanical [8][9][10][11][12] and thermal stability [9][10][11], are widely studied. These polymers consitute rigid-rod structures with extended π-conjugation which qualifies them as electronic materials with stiff backbones and outstanding mechanical properties [12].…”

Section: Introductionmentioning

confidence: 99%

A QSPR Study on the Physical Properties of Substituted Polypyrroles and Poly(paraphenylenes)

Yıldırım

Aksoy

Tüzün

et al. 2011

Designed Monomers and Polymers

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In this study, a quantitative structure-property relationship (QSPR) study is carried out to estimate the physical properties of substituted polypyrrole (PPy) and polyparaphenylene (PPP). The effects of the substituted side-chains composed of ε-caprolactone, ethylene and styrene oligomers on the glass transition temperature, cohesive energy and dielectric constant of PPy and PPP are studied and the results are analyzed in terms of backbone structure, the type and the length of the side-chains. It is shown that the T g of the polymers can be lowered upon substitution of flexible side-chains. The cohesive energy is higly dependent on the the strength of the non-bonded interactions and it is increased by incorporation of flexible side-chains. The dielectric constant of the polymers is found to be increased depending on the polarizability and the dipole moment density of the side-chains.

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Conductive copolymers of polyaniline, polypyrrole and poly(dimethylsiloxane)

Cited by 58 publications

References 23 publications

In-situ Polymerization of Polyaniline/Polypyrrole Copolymer using Different Techniques

In-situ Polymerization of Polyaniline/Polypyrrole Copolymer using Different Techniques

Polypyrrole doped with redox-active poly(2-methoxyaniline-5-sulfonic acid) for lithium secondary batteries

A QSPR Study on the Physical Properties of Substituted Polypyrroles and Poly(paraphenylenes)

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