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Atsuta Y, Takeuchi K, Shioda N, Hamada W, Hirai T, Nakamura Y, Oaki Y, Fujii S. Colloidally Stable Polypyrrole Nanoparticles Synthesized by Surfactant-Free Coupling Polymerization. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:14984-14995. [PMID: 37831595 DOI: 10.1021/acs.langmuir.3c01859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2023]
Abstract
Surfactant-free polypyrrole (PPy) nanoparticles, which were colloidally stable in aqueous medium, were successfully synthesized by coupling polymerization of pyrrole using Fe(NO3)3 solids in the absence of any colloidal stabilizer. The pyrrole monomers were gradually supplied from the vapor phase, and the coupling reaction of the monomers could proceed to generate PPy in a water medium. The resulting PPy nanoparticles were extensively characterized in terms of diameter, bulk chemical composition, surface chemistry, and colloidal stability by dynamic light scattering, electron microscopy, elemental microanalysis, Fourier transform infrared spectroscopy, Raman spectroscopy, electrophoresis, and X-ray photoelectron spectroscopy. The characterization results indicated that the PPy nanoparticles can be colloidally stable based on the electrostatic stabilization mechanism due to cationic charges generated on the PPy molecules by doping during the polymerization. General chemical oxidative polymerization in aqueous medium using the Fe(NO3)3 oxidant without a colloidal stabilizer as a control experiment resulted in generation of atypical PPy aggregates with over a micrometer size, indicating that the polymerization at low ionic strength is essential for colloidal particle formation. Finally, it was demonstrated that the PPy nanoparticles worked as a surfactant-free black-colored particulate emulsifier by adsorption at the oil-water interface to stabilize Pickering-type oil-in-water emulsions.
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Affiliation(s)
- Yuya Atsuta
- Division of Applied Chemistry, Environmental and Biomedical Engineering, Graduate School of Engineering, Osaka Institute of Technology 5-16-1 Omiya, Asahi-ku 535-8585, Osaka, Japan
| | - Kazusa Takeuchi
- Division of Applied Chemistry, Environmental and Biomedical Engineering, Graduate School of Engineering, Osaka Institute of Technology 5-16-1 Omiya, Asahi-ku 535-8585, Osaka, Japan
| | - Nano Shioda
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Wakana Hamada
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Tomoyasu Hirai
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku 535-8585, Osaka, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku 535-8585, Osaka, Japan
| | - Yoshinobu Nakamura
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku 535-8585, Osaka, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku 535-8585, Osaka, Japan
| | - Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Syuji Fujii
- Department of Applied Chemistry, Faculty of Engineering, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku 535-8585, Osaka, Japan
- Nanomaterials Microdevices Research Center, Osaka Institute of Technology, 5-16-1 Omiya, Asahi-ku 535-8585, Osaka, Japan
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Oaki Y, Sato K. Nanoarchitectonics for conductive polymers using solid and vapor phases. NANOSCALE ADVANCES 2022; 4:2773-2781. [PMID: 36132001 PMCID: PMC9418446 DOI: 10.1039/d2na00203e] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/21/2022] [Indexed: 05/03/2023]
Abstract
Conductive polymers have been extensively studied as functional organic materials due to their broad range of applications. Conductive polymers, such as polypyrrole, polythiophene, and their derivatives, are typically obtained as coatings and precipitates in the solution phase. Nanoarchitectonics for conductive polymers requires new methods including syntheses and morphology control. For example, nanoarchitectonics is achieved by liquid-phase syntheses with the assistance of templates, such as macromolecules and porous materials. This minireview summarizes the other new synthetic methods using the solid and vapor phases for nanoarchitectonics. In general, the monomers and related species are supplied from the solution phase. Our group has studied polymerization of heteroaromatic monomers using the solid and vapor phases. The surface and inside of solid crystals were used for the polymerization with the diffusion of the heteroaromatic monomer vapor. Our nanoarchitectonics affords to form homogeneous coatings, hierarchical structures, composites, and copolymers for energy-related applications. The concepts using solid and vapor phases can be applied to nanoarchitectonics for not only conductive polymers but also other polymers toward a variety of applications.
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Affiliation(s)
- Yuya Oaki
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Kosuke Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University 3-14-1 Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
- Organic Materials Chemistry Group, Sagami Chemical Research Institute 2743-1 Hayakawa Ayase Kanagawa 252-1193 Japan
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Li J, Cheng F, Li H, Zhang H, Wang G, Pan D. Two-step deposition of Ag nanowires/Zn 2SnO 4 transparent conductive films for antistatic coatings. RSC Adv 2021; 11:14730-14736. [PMID: 35423985 PMCID: PMC8697850 DOI: 10.1039/d1ra00427a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/07/2021] [Indexed: 01/21/2023] Open
Abstract
Silver nanowire (AgNW) networks play an important role in the transparent conductive electrodes or antistatic coatings. In this work, we describe a facile two-step method to fabricate AgNWs/Zn2SnO4 composite films. Long AgNWs with a high aspect ratio were prepared through a modified polyol method, in which the organic octylamine hydrochloride rather than the commonly used inorganic chlorides was used as the shape-controlling agent. The AgNW networks were fabricated on the glass substrate, on which the Zn2SnO4 film was deposited, forming robust AgNWs/Zn2SnO4 composite films. The as-prepared composite films have strong adhesion, high thermal stability, low sheet resistance (5-15 ohm sq-1) and high light transmittance (85-80%), indicating a promising application prospect for transparent conductive electrodes and antistatic coatings.
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Affiliation(s)
- Jing Li
- School of Materials Science and Engineering, Changzhou University Changzhou Jiangsu 213164 China
- College of Material and Textile Engineering, Jiaxing University Jiaxing Zhejiang 314001 China
| | - Fengmei Cheng
- College of Material and Textile Engineering, Jiaxing University Jiaxing Zhejiang 314001 China
| | - Haidong Li
- College of Material and Textile Engineering, Jiaxing University Jiaxing Zhejiang 314001 China
| | - Hongwen Zhang
- School of Materials Science and Engineering, Changzhou University Changzhou Jiangsu 213164 China
| | - Gang Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences 5625 Renmin Street Changchun Jilin 130022 China
| | - Daocheng Pan
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences 5625 Renmin Street Changchun Jilin 130022 China
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Numazawa H, Igarashi Y, Sato K, Imai H, Oaki Y. Experiment‐Oriented Materials Informatics for Efficient Exploration of Design Strategy and New Compounds for High‐Performance Organic Anode. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201900130] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Hiromichi Numazawa
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3‐14‐1 Hiyoshi Kohoku‐ku Yokohama 223‐8522 Japan
| | - Yasuhiko Igarashi
- Graduate School of Frontier Sciences The University of Tokyo 5‐1‐5 Kashiwanoha Kashiwa 277‐8561 Japan
- Japan Science and Technology Agency PRESTO 4‐1‐8 Honcho Kawaguchi 332‐0012 Japan
| | - Kosuke Sato
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3‐14‐1 Hiyoshi Kohoku‐ku Yokohama 223‐8522 Japan
| | - Hiroaki Imai
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3‐14‐1 Hiyoshi Kohoku‐ku Yokohama 223‐8522 Japan
| | - Yuya Oaki
- Department of Applied Chemistry Faculty of Science and Technology Keio University 3‐14‐1 Hiyoshi Kohoku‐ku Yokohama 223‐8522 Japan
- Japan Science and Technology Agency PRESTO 4‐1‐8 Honcho Kawaguchi 332‐0012 Japan
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