Electrochemical synthesis and characterization of poly(aniline-co-1-amino-9,10-anthraquinone), a nanosized conducting copolymer

Palaniappan, S.; Manisankar, P.

doi:10.1007/s10965-010-9420-6

Cited by 9 publications

(3 citation statements)

References 48 publications

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“…Compared to PANI, PNA is highly processable and thermally stable. PNA has excellent electrochromic, photocatalytic and electrocatalytic properties owing to its low bandgap and unique structural features [45][46][47][48][49][50][51][52][53][54]. This work was focused on the preparation of lightweight and low-cost functional materials by hybridizing the unique properties of semiconducting PNA and layered WS 2 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and dielectric studies of poly(1-naphthylamine)–tungsten disulphide nanocomposites

Saidu

Thomas

2020

SN Appl. Sci.

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Here, novel poly(1-naphthylamine)-tungsten disulphide (PNA-WS 2 ) nanocomposites were synthesized through an in-situ chemical oxidative polymerization of 1-naphthylamine in the presence of ultrasonically dispersed WS 2 . The effect of WS 2 addition on the optoelectrical, morphological and thermal properties of PNA was studied by using different analytical tools. SEM images revealed that PNA aggregates are well supported on the dispersed WS 2 sheets. The formation of a fibrous network of PNA over the dispersed WS 2 layers evidenced from the TEM images has suggested larger surface area and better interfacial interaction between PNA and incorporated WS 2 layers . The thermal stability was improved upon the incorporation of WS 2 . Optical bandgap values of PNA-WS 2 nanocomposites were lower than that of bulk WS 2 and pristine PNA. Electrical and dielectric studies have confirmed an improvement in conductivity and dielectric properties with increasing WS 2 content, which was credited to the better charge transport between the polar backbone of PNA and charged surface of dispersed WS 2 due to enhanced interfacial area and electrostatic interactions between the components. A maximum AC conductivity of 4.4 × 10 -3 Sm −1 was displayed by nanocomposite containing 20% WS 2 loading and a further increase in WS 2 content showed a detrimental effect in electrical and dielectric properties. The present study has demonstrated that optical and dielectric properties of composites can be readily tuned by proper control of the composition and dispersion of WS 2 within the PNA matrix.

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Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and dielectric studies of poly(1-naphthylamine)–tungsten disulphide nanocomposites

Saidu

Thomas

2020

SN Appl. Sci.

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“…Commonly referred to as anthraquinone (AQ), 9,10-anthraquinone is composed of three fused aromatic rings, the central entity bearing two carbonyl groups (see Scheme ). AQ derivatives are essential building blocks in several fields, − but the most common application of AQ compounds remains the dyeing of both natural and synthetic fibers. Indeed, substituted AQ may provide a complete and tunable panel of vivid colors if the auxochroms placed in positions 1–8 of the central core (see Scheme ) are adequately selected. − Together with the existence of straightforward synthetic pathways and their thermal stability, the broad color palette explains why AQ dyes represent about one-fourth of today’s organic world production of dyes. ,,− The most simple anthraquinoidic dyes present an intense bell-shaped and structureless visible band, and the typical structure–property relationships used in color chemistry can be applied to adequately predict their absorption wavelength .…”

Section: Introductionmentioning

confidence: 99%

TD-DFT Vibronic Couplings in Anthraquinones: From Basis Set and Functional Benchmarks to Applications for Industrial Dyes

Jacquemin

Brémond

Planchat

et al. 2011

J. Chem. Theory Comput.

131

143

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Vibrationally resolved absorption spectra of a series of anthraquinoidic dyes have been obtained with a polarizable continuum model time-dependent density functional theory approach. Firstly, we assessed the impact of the atomic basis set on both the transition energies and the vibronic shapes of 1,4-NH2-anthraquinone using a large panel of Pople's basis sets, up to the 6-311++G(3df,3pd). In a second stage, an extensive functional benchmark has been performed to determine an adequate approach for the same compound. In the third step, a complete analysis of the origin of the band shape was performed for the same derivative. In the fourth stage, a set of functionals has been applied to investigate the position isomers in the dihydroxy anthraquinone series. Finally, in a last phase, the methodology has been used for three dyes of technological interest. It turns out that the chosen basis set has a relatively limited impact on the computed transition energies as well as the topology of the vibronic shape, but both are significantly influenced by the selected functional. In the present case, no single functional simultaneously provides highly accurate positions and intensities of the different bands, but ωB97XD appears to be a good compromise. This analysis allows to rationalize the difference in shapes experimentally noticed for the visible band of apparently similar anthraquinones.

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“…Cyclic voltammetry of monomer and polymer (67) supported by carbon paper were performed which allow high electrochemical stability and reversible electrochemical property [73]. Palaniappan and Manisankar [74] examined the effect of using copolymers rather than simple carbonyl polymers on sensing and electrocatalytic applications. They worked with aniline (68) and amino anthraquinone (34) in single step reaction and electropolymerized the product (Fig.…”

Section: Synthesis Of High Molecular Weight Anthraquinone Derivativementioning

confidence: 99%

Synthesis of anthraquinone-based electroactive polymers: a critical review

Zarren

Nisar

Sher

2019

Materials Today Sustainability

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Electrochemical synthesis and characterization of poly(aniline-co-1-amino-9,10-anthraquinone), a nanosized conducting copolymer

Cited by 9 publications

References 48 publications

Synthesis, characterization and dielectric studies of poly(1-naphthylamine)–tungsten disulphide nanocomposites

Synthesis, characterization and dielectric studies of poly(1-naphthylamine)–tungsten disulphide nanocomposites

TD-DFT Vibronic Couplings in Anthraquinones: From Basis Set and Functional Benchmarks to Applications for Industrial Dyes

Synthesis of anthraquinone-based electroactive polymers: a critical review

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