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Ohno K, Hisatomi T, Seo H. Colloidal Crystals of Charged-Polymer-Brush-Decorated Hybrid Particles in Low-Polarity Solvents. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:16104-16111. [PMID: 36512625 DOI: 10.1021/acs.langmuir.2c02768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Colloidal crystals are self-assembled systems that are suitable as models for studying crystallization; they are also attractive as nanostructures with a periodic arrangement of materials that have different refractive indices. Here, we present a method of constructing colloidal crystals in an organic solvent using charged-polymer-brush-decorated core-shell-type hybrid particles synthesized by surface-initiated living radical polymerization. The core-shell-type hybrid particles consisted of a silica particle core surrounded by a shell of polymer brushes obtained by the polymerization of methyl methacrylate and a small amount of a cationic monomer, [2-(methacryloyloxy)ethyl]trimethylammonium chloride. When the core-shell-type hybrid particles were dispersed in a low-polarity solvent with a dielectric constant of ∼11, colloidal crystals formed when the particle volume fraction exceeded a certain threshold, and remarkably, the interparticle distance in the colloidal crystal reached more than several micrometers under certain colloidal crystallization conditions. The colloidal crystallization behavior depended upon the surface charge density of the hybrid particles, ionic strength of the suspension, and dielectric constant of the solvent. The proposed method to construct colloidal crystals using electrostatic interactions between charged polymer brushes will promote the development of systems exhibiting particle self-assembly.
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Affiliation(s)
- Kohji Ohno
- Department of Materials Science, Graduate School of Engineering, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
| | - Tatsuya Hisatomi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Haruna Seo
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
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Xing Y, Li Q, Chen X, Li M, Wang S, Li Y, Wang T, Sun X, Li X. Preparation of isoelectric point-switchable polymer brush-grafted mesoporous silica using RAFT polymerization with high performance for Ni(II) adsorption. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Wu X, Zhang J, Zhang L, Tang C. Thermal stability of APTES surface modified nano SiO2 insulating oil. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Bouad V, Ohno K, Addad A, Marin A, Donzel N, Barrau S, Lyskawa J, Ladmiral V. Surface-initiated reversible addition fragmentation chain transfer of fluoromonomers: an efficient tool to improve interfacial adhesion in piezoelectric composites. Polym Chem 2022. [DOI: 10.1039/d2py00825d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
Baryum titanate/P(VDF-co-TrFE) piezoelectric composites with sturdy interfaces thanks to surface-initiated RAFT polymerization prepared fluoropolymer brushes.
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Affiliation(s)
- Vincent Bouad
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
- Université de Lille, CNRS, INRAE, Centrale Lille, UMR 8207 – UMET – Unité Matériaux et Transformations, F-59000 Lille, France
| | - Kohji Ohno
- Department of Materials Science, Graduate School of Engineering, Osaka Metropolitan University, Sakai, Osaka 599-8531, Japan
| | - Ahmed Addad
- Université de Lille, CNRS, INRAE, Centrale Lille, UMR 8207 – UMET – Unité Matériaux et Transformations, F-59000 Lille, France
| | - Adeline Marin
- Université de Lille, CNRS, INRAE, Centrale Lille, UMR 8207 – UMET – Unité Matériaux et Transformations, F-59000 Lille, France
| | - Nicolas Donzel
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
| | - Sophie Barrau
- Université de Lille, CNRS, INRAE, Centrale Lille, UMR 8207 – UMET – Unité Matériaux et Transformations, F-59000 Lille, France
| | - Joël Lyskawa
- Université de Lille, CNRS, INRAE, Centrale Lille, UMR 8207 – UMET – Unité Matériaux et Transformations, F-59000 Lille, France
| | - Vincent Ladmiral
- ICGM, University of Montpellier, CNRS, ENSCM, Montpellier, France
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Precise construction of polymer brush on a nanosilica surface via the combination of anionic polymerization and Ugi-4CR. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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