Mechanochemical synthesis of hyper-crosslinked polymers: influences on their pore structure and adsorption behaviour for organic vapors

Sven Grätz; Sebastian Zink; Hanna Kraffczyk; Marcus Rose; Lars Borchardt

doi:10.3762/bjoc.15.112

Mechanochemical synthesis of hyper-crosslinked polymers: influences on their pore structure and adsorption behaviour for organic vapors

Beilstein J Org Chem. 2019 May 24:15:1154-1161. doi: 10.3762/bjoc.15.112. eCollection 2019.

Authors

Sven Grätz¹, Sebastian Zink², Hanna Kraffczyk³, Marcus Rose³, Lars Borchardt¹

Affiliations

¹ Anorganische Chemie, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany.
² Institute of Inorganic Chemistry, Technische Universität Dresden, Dresden, Germany.
³ Fachgebiet Technische Chemie II, Technische Universität Darmstadt, Darmstadt, Germany.

Abstract

This study elucidates a mechanochemical polymerization reaction towards a hyper-crosslinked polymer as an alternative to conventional solvent-based procedures. The swift and solvent-free Friedel-Crafts alkylation reaction yields a porous polymer with surface areas of up to 1720 m²g^-1 and pore volumes of up to 1.55 cm³g^-1. The application of LAG (liquid-assisted grinding) revealed a profound impact of the liquid´s boiling point on the textural properties of the obtained polymer materials. Finally, the materials are characterized by vapour sorption experiments with benzene and cyclohexane.

Keywords: hyper-crosslinked polymers; mechanochemistry; microporous; solvent-free; vapor sorption.