Tuning the Activity of a Hybrid Polymer–Oxocluster Catalyst: A Composition—Selectivity Correlation

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 a...

Full description

Saved in:
Bibliographic Details
Published in:Polymers 2021-09, Vol.13 (19), p.3268
Main Authors: Bragaggia, Giulia, Beghetto, Anna, Bassato, Ferdinando, Reichenbächer, Rudi, Dolcet, Paolo, Carraro, Mauro, Gross, Silvia
Format: Article
Language:English
Subjects:
Catalysts
Catalytic activity
Chemical synthesis
Composition
Fourier transforms
Hydrogen peroxide
Infrared analysis
Infrared spectroscopy
Materials recovery
Metals
NMR
Nuclear magnetic resonance
Oxidation
Polymers
Polymethyl methacrylate
Scanning electron microscopy
Selectivity
Software
Solvents
Spectrum analysis
Stability analysis
Substrates
Thermogravimetric analysis
X ray absorption
Zirconium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym13193268