A mechanochemical process is proposed as an innovative approach to the synthesis of polypropylene-based macromolecular stabilizers with outstanding thermal behavior. Properly designed butylated hydroxytoluene antioxidants (BHT) and hindered amine light stabilizers (HALS) are covalently linked to polypropylene grafted with maleic anhydride (PP-g-MA) using a ball-mill apparatus under mild and solvent-free conditions. The study reports a quantitative evaluation of the degree of functionalization based on ATR-FTIR quantification technique and the solid-state NMR spectroscopy characterization of the ensuing materials. This strategy is a significant step towards safe and sustainable chemical synthesis in the field of macromolecular materials.

Mechanochemical synthesis of polypropylene-based macromolecular stabilizers / Di Maro, Mattia; Giraldi, Domitilla; Menichetti, Stefano; Losio, Simona; Stagnaro, Paola; Utzeri, Roberto; Cerofolini, Linda; Fragai, Marco; Viglianisi, Caterina. - In: REACTIVE & FUNCTIONAL POLYMERS. - ISSN 1381-5148. - ELETTRONICO. - 197:(2024), pp. 105858.1-105858.10. [10.1016/j.reactfunctpolym.2024.105858]

Mechanochemical synthesis of polypropylene-based macromolecular stabilizers

Di Maro, Mattia
Investigation
;
Menichetti, Stefano
Writing – Review & Editing
;
Cerofolini, Linda
Formal Analysis
;
Fragai, Marco
Formal Analysis
;
Viglianisi, Caterina
Supervision
2024

Abstract

A mechanochemical process is proposed as an innovative approach to the synthesis of polypropylene-based macromolecular stabilizers with outstanding thermal behavior. Properly designed butylated hydroxytoluene antioxidants (BHT) and hindered amine light stabilizers (HALS) are covalently linked to polypropylene grafted with maleic anhydride (PP-g-MA) using a ball-mill apparatus under mild and solvent-free conditions. The study reports a quantitative evaluation of the degree of functionalization based on ATR-FTIR quantification technique and the solid-state NMR spectroscopy characterization of the ensuing materials. This strategy is a significant step towards safe and sustainable chemical synthesis in the field of macromolecular materials.
2024
197
1
10
Di Maro, Mattia; Giraldi, Domitilla; Menichetti, Stefano; Losio, Simona; Stagnaro, Paola; Utzeri, Roberto; Cerofolini, Linda; Fragai, Marco; Viglianisi, Caterina
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/1353171
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