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Published on: September 5, 2018
Water-soluble sulfonated hyperbranched poly(arylene oxindole) catalysts as functional biomimics of cellulases
Feng Yu1, Mario Smet2, Wim Dehaen2
1Department of Chemistry, KU Leuven, Celestijnenlaan 200F, 3001 Leuven, Belgium. mario.smet@chem.kuleuven.be wim.dehaen@chem.kuleuven.be and Centre for Surface Chemistry and Catalysis, KU Leuven, Kasteelpark Arenberg 23, 3001 Leuven, Belgium. bert.sels@biw.kuleuven.be.
Abstract:
A new polymer acid catalyst, sulfonated hyperbranched poly(arylene oxindole), 5-OH-SHPAO, was prepared for selective cellulose hydrolysis. Its superior catalysis, showing high glucose selectivity at almost full cellulose conversion, is attributed to the presence of an hydroxyl group next to the sulfonic acid, therefore mimicking the separate acid-base pair in the cellulase active site.
