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Your search keyword '"Sirikorn Chasvised"' showing total 3 results
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3 results on '"Sirikorn Chasvised"'

1. Robust and Efficient Screen-Printed Molecular Anodes with Anchored Water Oxidation Catalysts

Author

Andrew Howe, Laurent Authier, Marcos Gil-Sepulcre, Asmaul Hoque, Sirikorn Chasvised, Laurent Billon, Van Son Nguyen, Stéphanie Reynaud, Robin N. Dürr, Cyril Cugnet, Saeed Sadeghi, Antoine Bousquet, Antoni Llobet, Carolina Gimbert-Suriñach, Carnegie Mellon University [Pittsburgh] (CMU), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Institut Charles Sadron (ICS), Université de Strasbourg (UNISTRA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Réseau nanophotonique et optique, Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Matériaux et nanosciences d'Alsace (FMNGE), and Institut de Chimie du CNRS (INC)-Université de Strasbourg (UNISTRA)-Université de Haute-Alsace (UHA) Mulhouse - Colmar (Université de Haute-Alsace (UHA))-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Strasbourg (UNISTRA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)

Subjects
010405 organic chemistry, Chemistry, Energy Engineering and Power Technology, 010402 general chemistry, 01 natural sciences, 0104 chemical sciences, Catalysis, Anode, Chemical engineering, [SDE]Environmental Sciences, Materials Chemistry, Electrochemistry, Chemical Engineering (miscellaneous), [CHIM]Chemical Sciences, Electrical and Electronic Engineering, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2021
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2. Revealing surface functionalities via microwave for the para-fluoro-Thiol click reaction

Author

Joachim Allouche, Laurent Billon, Antoine Bousquet, Clara Paybou, Sirikorn Chasvised, Cécile Courrèges, Coste Mawélé Loudy, Hervé Martinez, Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), and Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Diblock copolymer, Materials science, Polymers and Plastics, microwave, surface segregation, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Chemical reaction, chemistry.chemical_compound, para-fluoro-thiol click reaction, X-ray photoelectron spectroscopy, Materials Chemistry, Copolymer, Nucleophilic substitution, chemistry.chemical_classification, Organic Chemistry, Polymer, [CHIM.MATE]Chemical Sciences/Material chemistry, 021001 nanoscience & nanotechnology, Surface energy, 0104 chemical sciences, [CHIM.POLY]Chemical Sciences/Polymers, chemistry, Chemical engineering, gold nanoparticles, Click chemistry, Polystyrene, 0210 nano-technology
Abstract

International audience; A fast and simple bottom-up methodology is reported to allow, thanks to a spontaneous phenomenon, the grafting of various materials on polymer substrates. In 60 s, the inert surface of polystyrene material is converted into a functional platform onto which organic molecules and metal particles can be anchored. A polystyrene (PS) matrix is blended with a small amount of a diblock copolymer additive engineered to both segregate at the material surface and be able to involve chemical reaction. Indeed, poly(pentafluorostyrene) (PSF) contains surface active fluorine atoms and the nucleophuge para-fluorine atom that allows nucleophilic substitution with thiols. Films of blend of PS matrix and PS-b-PSF additive are submitted to a microwave annealing to accelerate the spontaneous surface segregation of fluorine low surface energy atoms. XPS was performed to find that the optimal annealing conditions was a treatment at 30 W during 60 s. With this procedure, a blend of 5 w% in additive can lead to a surface composed of 13 at% of fluorine atoms corresponding to 55 w% of diblock. The pentafluorostyrene units decorating the surface were used as anchors to immobilize gold nanoparticles via the para-fluoro-thiol click reaction.

Published
2020
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3. Hierarchically organized honeycomb films through block copolymer directed self-assembly in 'breath figure' templating and soft microwave-triggered annealing

Author

Laurent Billon, Pierre Marcasuzaa, Laurence Pessoni, Sirikorn Chasvised, Stéphanie Reynaud, Nicolas Benoot, Antoine Bousquet, Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux ( IPREM ), Université de Pau et des Pays de l'Adour ( UPPA ) -Centre National de la Recherche Scientifique ( CNRS ), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), and Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
Materials science, Annealing (metallurgy), 02 engineering and technology, 010402 general chemistry, 01 natural sciences, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, Ellipsometry, Copolymer, Wafer, Composite material, [CHIM.MATE]Chemical Sciences/Material chemistry, General Chemistry, Microporous material, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Microstructure, 0104 chemical sciences, [CHIM.THEO]Chemical Sciences/Theoretical and/or physical chemistry, [ CHIM.POLY ] Chemical Sciences/Polymers, Honeycomb structure, [CHIM.POLY]Chemical Sciences/Polymers, [ CHIM.MATE ] Chemical Sciences/Material chemistry, [ CHIM.THEO ] Chemical Sciences/Theoretical and/or physical chemistry, [ CHIM.ANAL ] Chemical Sciences/Analytical chemistry, 0210 nano-technology, Microwave
Abstract

International audience; Hierarchically organized polymer films are produced with a high level of order from the combination of block copolymer nanophase segregation, “breath figure” methodology and microwave irradiation. A block copolymer based on poly(methyl methacrylate) and poly(n-butylacrylate) featuring cylindrical nanopatterns is involved in the “breath figure” process to create a microporous honeycomb structure. These films are submitted to microwave annealing to enhance the degree of ordering of the nano-segregation without the destruction of the honeycomb microstructure, which is not possible by classical thermal or solvent annealing. Ellipsometry, optical and atomic force microscopy are used to study three key parameters; the substrate nature, the film thickness and the microwave irradiation power. The silicon wafer is the substrate of choice to efficiently act as the heating transfer element and 60 seconds at 10 watts are enough to nicely order the 1 μm thick copolymer films. These conditions are eventually applied on hierarchically organized polymer films to obtain a hexagonal array of 100 nm deep holes within a matrix of perpendicularly aligned nano-cylinders.

Published
2018
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