Karam Ayman, Amaniampong Prince N, García Fernández José M, Oldani Claudio, Marinkovic Sinisa, Estrine Boris, De Oliveira Vigier Karine, Jérôme François
INCREASE (FR Centre National De La Recherche Scientifique 3707), ENSIP, Poitiers, France.
Institut de Chimie des Milieux et Matériaux de Poitiers, Université de Poitiers, Centre National de la Recherche Scientifique, ENSIP, Poitiers, France.
Front Chem. 2018 Mar 22;6:74. doi: 10.3389/fchem.2018.00074. eCollection 2018.
Here, we investigated that the mechanocatalytic depolymerization of cellulose in the presence of Aquivion, a sulfonated perfluorinated ionomer. Under optimized conditions, yields of water soluble sugars of 90-97% were obtained using Aquivion PW98 and PW66, respectively, as a solid acid catalyst. The detailed characterization of the water soluble fraction revealed (i) the selective formation of oligosaccharides with a DP up to 11 and (ii) that depolymerization and reversion reactions concomitantly occurred during the mechanocatalytic process, although the first largely predominated. More importantly, we discussed on the critical role of water contained in Aquivion and cellulose on the efficiency of the mechanocatalytic process.
在此，我们研究了在磺化全氟离子交换膜Aquivion存在下纤维素的机械催化解聚。在优化条件下，分别使用Aquivion PW98和PW66作为固体酸催化剂，水溶性糖的产率达到了90 - 97%。对水溶性部分的详细表征表明：（i）选择性形成了聚合度高达11的低聚糖；（ii）在机械催化过程中，解聚和逆反应同时发生，尽管前者占主导地位。更重要的是，我们讨论了Aquivion和纤维素中所含水分对机械催化过程效率的关键作用。
