Formation Features of Hybrid Nanocomposites Based on Polydiphenylamine-2-Carboxylic Acid and Single-Walled Carbon Nanotubes

Ozkan, S. Zh.; Карпачева, Г. П.; Kostev, Aleksandr Ivanovich; Бондаренко, Г. Н.

doi:10.3390/polym11071181

Cited by 12 publications

(8 citation statements)

References 78 publications

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“…The chemical structure of the corresponding polymer components is shown in Figure 1 . This dependence of the polymer matrix chemical structure on the reaction medium pH was observed during the synthesis of SWCNT/PDPAC nanocomposites in the absence of Fe 3 O 4 nanoparticles [ 52 ].…”

Section: Resultsmentioning

confidence: 82%

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Hybrid Electromagnetic Nanomaterials Based on Polydiphenylamine-2-carboxylic Acid

et al. 2020

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Hybrid ternary nanomaterials based on conjugated polymer polydiphenylamine-2-carboxylic acid (PDPAC) (poly-N-phenylanthranilic acid), Fe3O4 nanoparticles and single-walled carbon nanotubes (SWCNT) were prepared for the first time. Polymer–metal–carbon Fe3O4/SWCNT/PDPAC nanocomposites were synthesized via in situ oxidative polymerization of diphenylamine-2-carboxylic acid (DPAC) by two different ways: in an acidic medium and in the interfacial process in an alkaline medium. In an alkaline medium (pH 11.4), the entire process of Fe3O4/SWCNT/PDPAC-1 synthesis was carried out in one reaction vessel without intermediate stages of product extraction and purification. In an acidic medium (pH 0.3), to prepare the Fe3O4/SWCNT/PDPAC-2 nanocomposites, prefabricated magnetite nanoparticles were deposited on the surface of obtained SWCNT/PDPAC-2. The phase composition of the nanocomposites does not depend on the synthesis reaction medium pH. The influence of the reaction medium pH on the structure, morphology, thermal, magnetic, and electrical properties of the obtained ternary nanocomposites was studied.

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Section: Resultsmentioning

confidence: 82%

“…As seen in Figure 10 , both in the PDPAC-1 and PDPAC-2 polymers, the weight loss at ~170 °C is connected with the removal of COOH groups [ 52 ]. In this temperature range, the DSC thermograms of polymers have an exothermic peak associated with decomposition [ 44 , 46 ].…”

Section: Resultsmentioning

confidence: 99%

Hybrid Electromagnetic Nanomaterials Based on Polydiphenylamine-2-carboxylic Acid

et al. 2020

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“…Hybrid materials were synthesized for the first time via in situ oxidative polymerization of N-PAA in the presence of GO in the heterophase system in an alkaline medium (RGO/P-N-PAA-1), as well as from a solution of P-N-PAA in DMF containing GO (RGO/P-N-PAA-2). P-N-PAA polyacid, synthesized by the authors for the first time, is well adsorbed on graphene nanosheets due to π-stacking and hydrogen bonding of carboxylic groups [55,56] to oxygen-containing groups on the graphene oxide. With the further recovery of GO and removal of oxygen, the polymer layers prevent aggregation of graphene nanosheets.…”

Section: Synthesis and Characterization Of Rgo/p-n-paa Composites For...mentioning

confidence: 99%

Advanced Electrode Coatings Based on Poly-N-Phenylanthranilic Acid Composites with Reduced Graphene Oxide for Supercapacitors

et al. 2023

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The electrochemical behavior of new electrode materials based on poly-N-phenylanthranilic acid (P-N-PAA) composites with reduced graphene oxide (RGO) was studied for the first time. Two methods of obtaining RGO/P-N-PAA composites were suggested. Hybrid materials were synthesized via in situ oxidative polymerization of N-phenylanthranilic acid (N-PAA) in the presence of graphene oxide (GO) (RGO/P-N-PAA-1), as well as from a P-N-PAA solution in DMF containing GO (RGO/P-N-PAA-2). GO post-reduction in the RGO/P-N-PAA composites was carried out under IR heating. Hybrid electrodes are electroactive layers of RGO/P-N-PAA composites stable suspensions in formic acid (FA) deposited on the glassy carbon (GC) and anodized graphite foil (AGF) surfaces. The roughened surface of the AGF flexible strips provides good adhesion of the electroactive coatings. Specific electrochemical capacitances of AGF-based electrodes depend on the method for the production of electroactive coatings and reach 268, 184, 111 F∙g–1 (RGO/P-N-PAA-1) and 407, 321, 255 F∙g–1 (RGO/P-N-PAA-2.1) at 0.5, 1.5, 3.0 mА·cm–2 in an aprotic electrolyte. Specific weight capacitance values of IR-heated composite coatings decrease as compared to capacitance values of primer coatings and amount to 216, 145, 78 F∙g–1 (RGO/P-N-PAA-1IR) and 377, 291, 200 F∙g–1 (RGO/P-N-PAA-2.1IR). With a decrease in the weight of the applied coating, the specific electrochemical capacitance of the electrodes increases to 752, 524, 329 F∙g–1 (AGF/RGO/P-N-PAA-2.1) and 691, 455, 255 F∙g–1 (AGF/RGO/P-N-PAA-1IR).

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“…Carbon nanotubes and grapheme-like materials can be used as carbon materials for hybrid electrode components [ 28 , 29 , 30 , 31 ]. Earlier, polymer–carbon hybrid nanomaterials based on poly-3-amine-7-methylamine-2-methylphenazine (PAMMP), polydiphenylamine-2-carboxylic acid (PDPAC), and single-walled carbon nanotubes (SWCNT) were obtained [ 32 , 33 ]. The synthesis of nanocomposites was carried out using oxidative polymerization of monomers in the presence of SWCNT.…”

Section: Introductionmentioning

confidence: 99%

Novel Hybrid Composites Based on Polymers of Diphenyl-Amine-2-Carboxylic Acid and Highly Porous Activated IR-Pyrolyzed Polyacrylonitrile

et al. 2023

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Hybrid composites based on electroactive polymers of diphenylamine-2-carboxylic acid (PDPAC) and highly porous carbon with a hierarchical pore structure were prepared for the first time. Activated IR-pyrolyzed polyacrylonitrile (IR-PAN-a), characterized by a highly developed surface, was chosen as a highly porous N-doped carbon component of the hybrid materials. IR-PAN-a was prepared using pyrolysis of polyacrylonitrile (PAN) in the presence of potassium hydroxide under IR radiation. Composite materials were obtained using oxidative polymerization of diphenylamine-2-carboxylic acid (DPAC) in the presence of IR-PAN-a both in an acidic and an alkaline medium. The composite materials were IR-heated to reduce the oxygen content and enhance their physical and chemical properties. The chemical structure, morphology, and electrical and thermal properties of the developed IR-PAN-a/PDPAC composites were investigated. The IR-PAN-a/PDPAC composites are thermally stable and electrically conductive. During the synthesis of the composites in an acidic medium, doping of the polymer component occurs, which makes the main contribution to the composite conductivity (1.3 × 10–5 S/cm). A sharp drop in the electrical conductivity of the IR-PAN-a/PDPACac-IR composites to 3.4 × 10–10 S/cm is associated with the removal of the dopant during IR heating. The IR-PAN-a/PDPACalk composites prepared before and after IR heating show a gradual increase in electrical conductivity by five orders of magnitude to 1.6 × 10–5 S/cm at 25–106 Hz. IR heating of the obtained materials leads to a significant increase in their thermal properties. The IR-heated composites lose half of their initial weight in an inert atmosphere at temperatures above 1000 °C, whereas for IR-PAN-a/PDPAC, the temperature range is 840–849 °C.

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Formation Features of Hybrid Nanocomposites Based on Polydiphenylamine-2-Carboxylic Acid and Single-Walled Carbon Nanotubes

Cited by 12 publications

References 78 publications

Hybrid Electromagnetic Nanomaterials Based on Polydiphenylamine-2-carboxylic Acid

Hybrid Electromagnetic Nanomaterials Based on Polydiphenylamine-2-carboxylic Acid

Advanced Electrode Coatings Based on Poly-N-Phenylanthranilic Acid Composites with Reduced Graphene Oxide for Supercapacitors

Novel Hybrid Composites Based on Polymers of Diphenyl-Amine-2-Carboxylic Acid and Highly Porous Activated IR-Pyrolyzed Polyacrylonitrile

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