Tuning the activity of a hybrid polymer-oxocluster catalyst: A composition-selectivity correlation

DOI: 10.3390/polym13193268

Authors: Giulia Bragaggia (Università degli Studi di Padova; INSTM, Consorzio Interuniversitario per la Scienza e Tecnologia dei Materiali) , Anna Beghetto (Università degli Studi di Padova) , Ferdinando Bassato (Università degli Studi di Padova; INSTM, Consorzio Interuniversitario per la Scienza e Tecnologia dei Materiali) , Rudi Reichenbächer (Università degli Studi di Padova; Technische Universität Dresden) , Paolo Dolcet (Università degli Studi di Padova; INSTM, Consorzio Interuniversitario per la Scienza e Tecnologia dei Materiali; Karlsruher Institut für Technologie (KIT)) , Mauro Carraro (Università degli Studi di Padova; Istituto per la Tecnologia Delle Membrane del Consiglio Nazionale delle Ricerche (ITM-CNR)) , Silvia Gross (Università degli Studi di Padova; INSTM, Consorzio Interuniversitario per la Scienza e Tecnologia dei Materiali; Karlsruher Institut für Technologie (KIT))
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Polymers , VOL 13

State: Published (Approved)
Published: October 2021
Diamond Proposal Number(s): 23804

Abstract: Zr-based oxoclusters MxOy(OR)w(OOR’)z are promising catalysts for the activation of hydrogen peroxide. However, they need to be integrated into suitable matrices to increase their hydrolytic stability and allow for their recovery after use. Polymeric materials can be successfully employed for this aim, since they modify the properties of the resulting hybrid materials, in terms of polarity and chemical affinity for the substrates, improving the catalytic activity. Herein, we report the synthesis of different acrylic polymers based on various co-monomers (methyl methacrylate (MMA), 2,2,2-trifluoroethylmethacrylate (TFMA) and 3-methacryloxypropyltrimethoxylsilane (MAPTMS)) covalently cross-linked by a Zr4-based oxocluster, whose composition was tuned to optimise the catalytic oxidation of methyl p-tolyl sulphide. To assess their properties and stability, the materials were characterised via Fourier Transform Infrared (FT-IR) and Raman spectroscopies, Thermogravimetric Analysis (TGA), Solid-State NMR (SS-NMR) and X-Ray Absorption Spectroscopies XAS, before and after catalytic turnover.

Journal Keywords: oxidation catalysis; hybrid materials; oxocluster

Subject Areas: Materials, Chemistry


Instruments: B18-Core EXAFS

Added On: 07/10/2021 09:31

Documents:
polymers-13-03268.pdf

Discipline Tags:

Physical Chemistry Catalysis Chemistry Materials Science Polymer Science

Technical Tags:

Spectroscopy X-ray Absorption Spectroscopy (XAS)