Functionalization of Silicon Surfaces Using SI-ATRP and Click Chemistry for Anchoring Asymmetric Catalysts
Year: 2026
Type: article
Abstract: A novel approach for the surface-initiated atom transfer radical polymerization (SI-ATRP) of methoxyethyl methacrylate (MEMA) and 3-azidopropyl methacrylate (AZMA) on macroporous silicon substrates and their postfunctionalization by click chemistry with asymmetric catalysts is presented. Crystalline silicon was first used to monitor the multistep functionalization by quantitative IR-ATR spectroscopy. The attachment of an alkynyl FTIR marker on crystalline silicon demonstrated the effectiveness of the methodology, which was then applied onto macroporous silicon to anchor an enantiopure chromium-salen complex as a first step toward the development of new supported asymmetric organometallic catalysts on silicon-based materials. SEM and EDS measurements clearly show good homogeneity of the polymer growth through the porous layers with a uniform distribution of the catalysts (even deep inside the pores). The successful functionalization of macroporous silicon has confirmed the transferability of the technique to porous materials, highlighting its potential for application to even larger surface area substrates in future catalytic studies.
Source: Langmuir
Authors: Rafaela Bechara, Philippe Roger, Nadine Barroca-Aubry, Damien Aureau, Thomas Defforge, Clément Marchat, Gaël Gautier, Mohamed Mellah, Emmanuelle Schulz, François Ozanam, Anne-Chantal Gouget-Laemmel
Institutions: Centre National de la Recherche Scientifique, École Polytechnique, Université Paris-Saclay, Institut Polytechnique de Paris, Institut de Chimie Moléculaire et des Matériaux d'Orsay, Laboratoire de Physique de la Matière Condensée, Université de Versailles Saint-Quentin-en-Yvelines, Institut Lavoisier de Versailles, Université de Tours, Institut National des Sciences Appliquées Centre Val de Loire, GREMAN, Matériaux, Microélectronique, Acoustique, Nanotechnologies
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W7127888935