Preparation and Properties of High Performance Multilayered PANi/PMMA/PPG-b-PEG-b-PPG/FGHMDA Nanocomposites via in Situ Polymerization

Naz, Asima; Sattar, Rabia; Siddiq, Muhammad

doi:10.1080/03602559.2018.1471710

Cited by 4 publications

(2 citation statements)

References 29 publications

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“…The reason is that higher concentration of CP may hinder the polymer chains to enter into minor pores due to higher viscosity and, hence, leading to poor dispersion of graphite flakes in polymers. Generally, at higher concentrations of PANi, increased electrical conductivity values may be due to π-π stacking between FG and PANi chains, for which free charge mobility within the composite system increases [ 21 , 35 , 36 ].…”

Section: Resultsmentioning

confidence: 99%

Hierarchical Polyaniline Core-Shell Nanocomposites Coated on Modified Graphite for Improved Electrical Conductivity Performance

et al. 2022

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Graphite has recently gained scientific and industrial attention due to its high electrical conductivity. In the current endeavor, a new way to fabricate novel and multifunctional nanocomposites using functional graphite (FG) as filler is presented. The fabrication of multilayered conducting composites of PANi/PMMA/PPG-b-PEG-b-PPG was carried out via in situ polymerization, using polyaniline (PANi), poly(methyl methacrylate) (PMMA) and block copolymer as matrices in the presence of FGfiller. The growth of PANi chains is manifested by PMMA due to the formation of H-bonding between imine and carbonyl groups of PANi and MMA units, respectively, and are responsible for ion exchange sites. FTIR spectroscopy was used for structural elucidation of composites while elemental analysis was accomplished by XPS and EDX spectroscopy. The morphology of the prepared PANi/PMMA/PPG-b-PEG-b-PPG@FG composites was inspected by the SEM. The structure and crystallinity of the composites was investigated via XRD. The improved thermal stability and properties of the nanocomposites were observed using TGA and DSC. The conductivity measurements were used to characterize the electrical conductivity performance of the resulting composites. The presence of functional filler as well as polyaniline shows a significant contribution towards the enhancement of electrical conductivity of PANi/PMMA/PPG-b-PEG-b-PPG@FG nanocomposites.

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Section: Resultsmentioning

confidence: 99%

Hierarchical Polyaniline Core-Shell Nanocomposites Coated on Modified Graphite for Improved Electrical Conductivity Performance

et al. 2022

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“…In PPy/PVC/PDA@FG-NH 2 composite, the conductive passageways were formed by partial network connections leading to a dramatic increase in conductivity. 43,52,53 In spite of this, some conjugated structures also resulted in conductivity of composites. Moreover, in the case of PPy/PVC@FG-NH 2 composite (indicated by filled red circles), a slight increase in temperature results with decrease in conductivity due to the removal of solvent which is bounded to polymer chains and oligomers of low molecular weight.…”

Section: Electrical Conductivity Performancementioning

confidence: 99%

Influence of pyrrole feeding ratios on physicochemical characteristics of high-performance multilayered PPy/PVC/PDA@FG-NH₂ nanocomposites

Naz

Sattar

Siddiq

et al. 2019

Journal of Thermoplastic Composite Materials

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Nanocomposites of conjugated polymers polypyrrole (PPy) and polyvinyl chloride (PVC) as matrices and 1,4-phenylenediamine (PDA) as a linker with amine functional graphite (FG-NH2) as filler have been efficiently fabricated using in situ oxidative polymerization, and the effect of various mass ratios on physicochemical characteristics of prepared nanocomposite was investigated. The layer-by-layer oxidative polymerization of various matrices on host filler surface is confirmed by Fourier transform infrared, energy dispersive X-ray, and X-ray photoelectron spectroscopy examinations. Field emission scanning electron microscopy revealed fibrillary morphology of obtained nanocomposites. Thermal stability, glass transition temperature, and melting and crystallization temperature of the nanocomposites were increased with the incorporation of modified graphite. Brunauer–Emmett–Teller analysis explored the improved adsorption capacity (128 cm3 g−1) of the nanocomposite with higher feeding ratio of pyrrole. The influence of FG-NH2 and pyrrole on electrical conductivity performance of composites was also investigated. Functionalized graphite in the resultant PPy/PVC/PDA@FG-NH2 nanocomposites played an important role in forming conducting network in PPy matrix indicating synergistic effect between PPy and FG-NH2.

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Recent progress on carbon-based composites in multidimensional applications

Yang

Zhang

Chen

et al. 2022

Composites Part A: Applied Science and Manufacturing

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Preparation and Properties of High Performance Multilayered PANi/PMMA/PPG-b-PEG-b-PPG/FGHMDA Nanocomposites via in Situ Polymerization

Cited by 4 publications

References 29 publications

Hierarchical Polyaniline Core-Shell Nanocomposites Coated on Modified Graphite for Improved Electrical Conductivity Performance

Hierarchical Polyaniline Core-Shell Nanocomposites Coated on Modified Graphite for Improved Electrical Conductivity Performance

Influence of pyrrole feeding ratios on physicochemical characteristics of high-performance multilayered PPy/PVC/PDA@FG-NH₂ nanocomposites

Recent progress on carbon-based composites in multidimensional applications

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Preparation and Properties of High Performance Multilayered PANi/PMMA/PPG-b-PEG-b-PPG/FGHMDA Nanocomposites via in Situ Polymerization

Cited by 4 publications

References 29 publications

Hierarchical Polyaniline Core-Shell Nanocomposites Coated on Modified Graphite for Improved Electrical Conductivity Performance

Hierarchical Polyaniline Core-Shell Nanocomposites Coated on Modified Graphite for Improved Electrical Conductivity Performance

Influence of pyrrole feeding ratios on physicochemical characteristics of high-performance multilayered PPy/PVC/PDA@FG-NH2 nanocomposites

Recent progress on carbon-based composites in multidimensional applications

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Influence of pyrrole feeding ratios on physicochemical characteristics of high-performance multilayered PPy/PVC/PDA@FG-NH₂ nanocomposites