Tailoring of elastomeric grafted coating via sol-gel chemistry of crosslinked polymethylhydrosiloxane
| Autor: | Bruno Bresson, Thierry Thami, Christian Frétigny |
|---|---|
| Přispěvatelé: | Institut Européen des membranes (IEM), Université Montpellier 2 - Sciences et Techniques (UM2)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Sciences et Ingénierie de la Matière Molle (UMR 7615) (SIMM), Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physico-Chimie des Polymères et des Milieux Dispersés (PPMD), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Université Montpellier 2 - Sciences et Techniques (UM2)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM), Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Ecole Superieure de Physique et de Chimie Industrielles de la Ville de Paris (ESPCI Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL) |
| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
thin films • crosslinking • sol-gel process • dip-coating • elastomers
Condensation polymer Materials science Polymers and Plastics 02 engineering and technology engineering.material Elastomer 010402 general chemistry sol-gel process 01 natural sciences Contact angle chemistry.chemical_compound Coating Polymer chemistry Materials Chemistry crosslinking Fourier transform infrared spectroscopy dip- coating chemistry.chemical_classification Polymethylhydrosiloxane elastomers Polymer General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films chemistry thin films Triethoxysilane engineering 0210 nano-technology [CHIM.OTHE]Chemical Sciences/Other |
| Zdroj: | Journal of Applied Polymer Science Journal of Applied Polymer Science, 2007, 104 (3), pp.1504-1516. ⟨10.1002/app.25295⟩ Journal of Applied Polymer Science, Wiley, 2007, 104 (3), pp.1504-1516. ⟨10.1002/app.25295⟩ |
| ISSN: | 0021-8995 1097-4628 |
| Popis: | Thin coating of crosslinked polymethylhydrosiloxane are grafted on silica using sol–gel process that leads to polymer layers tailored in term of thickness and elasticity. The degree of crosslinking is tuned by sol–gel polycondensation of a mixture of methyldiethoxysilane(DH) HSi(CH3)(OCH2CH3)2 and triethoxysilane (TH) HSi(OCH2CH3)3, yielding triethoxysilane-based networks. Samples with well-defined thicknesses from nanometer to micrometer range are prepared by sol–gel dip-coating method on silicon surface. Homogeneous or gradient-thickness coating can be produced in this way. It results in surface-attached networks bearing SiH functionalities covalently anchored to the substrate. Powdered gels of DH/TH composition from 50/50 to 95/5 (mol %) were also prepared for a comparison purpose. The structure of the gels was investigated by NMR and FTIR, showing that DH/TH mixtures react totally to yield homogeneous matrix. The surface-attached polymer films are very stable and present high hydrophobicity as evidenced by contact angle measurements. Their surface and mechanical properties have been qualitatively studied using the atomic force microscopy. © 2007 Wiley Periodicals, Inc. J Appl Polym Sci 104: 1504–1516, 2007 |
| Databáze: | OpenAIRE |
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