Open AccessThis article is
- freely available
Periodic Mesoporous Organosilica Functionalized with Sulfonic Acid Groups as Acid Catalyst for Glycerol Acetylation
Center for Ordered Materials, Organometallics & Catalysis (COMOC), Department of Inorganic and Physical Chemistry, Ghent University, Krijgslaan 281, Building S3, Ghent B-9000, Belgium
Institute of Condensed Matter and Nanosciences (IMCN)—Division "MOlecules, Solids and reactiviTy—MOST", Université catholique de Louvain, Croix du Sud 2/L7.05.17, Louvain-la-Neuve B-1348, Belgium
* Author to whom correspondence should be addressed.
Received: 11 July 2013; in revised form: 1 August 2013 / Accepted: 13 August 2013 / Published: 16 August 2013
Abstract: A Periodic Mesoporous Organosilica (PMO) functionalized with sulfonic acid groups has been successfully synthesized via a sequence of post-synthetic modification steps of a trans-ethenylene bridged PMO material. The double bond is functionalized via a bromination and subsequent substitution obtaining a thiol functionality. This is followed by an oxidation towards a sulfonic acid group. After full characterization, the solid acid catalyst is used in the acetylation of glycerol. The catalytic reactivity and reusability of the sulfonic acid modified PMO material is investigated. The catalyst showed a catalytic activity and kinetics that are comparable with the commercially available resin, Amberlyst-15, and furthermore our catalyst can be recycled for several subsequent catalytic runs and retains its catalytic activity.
Keywords: Periodic Mesoporous Organosilica; sulfonic acid groups; catalysis; glycerol acetylation
Citations to this Article
Cite This Article
MDPI and ACS Style
De Canck, E.; Dosuna-Rodríguez, I.; Gaigneaux, E.M.; Van Der Voort, P. Periodic Mesoporous Organosilica Functionalized with Sulfonic Acid Groups as Acid Catalyst for Glycerol Acetylation. Materials 2013, 6, 3556-3570.
De Canck E, Dosuna-Rodríguez I, Gaigneaux EM, Van Der Voort P. Periodic Mesoporous Organosilica Functionalized with Sulfonic Acid Groups as Acid Catalyst for Glycerol Acetylation. Materials. 2013; 6(8):3556-3570.
De Canck, Els; Dosuna-Rodríguez, Inmaculada; Gaigneaux, Eric M.; Van Der Voort, Pascal. 2013. "Periodic Mesoporous Organosilica Functionalized with Sulfonic Acid Groups as Acid Catalyst for Glycerol Acetylation." Materials 6, no. 8: 3556-3570.