Amberlyst 15 as a new and reusable catalyst for the conversion of cellulose into cellulose acetate

The unique activity of catalyst in the epoxidation of soybean oil and following reaction of epoxidized product with bisphenol A

“…Additionally, this type of catalysts are effortless to regenerate and reuse in another reaction. Amberlyst 15 and Zerolit 325 ion exchange resin, which are strong cation exchangers known as catalyst in organic synthesis (Fan et al, 2014;Kilner et al, 2001;Sacia et al, 2014), had been chosen (Fig. 6).…”

Synthesis of cellulose triacetate from cotton cellulose by using NIS as a catalyst under mild reaction conditions

“…The most commonly used acetylating reagents are acetic anhydride and acetyl chloride (Heinze & Liebert, 2004 of acetic anhydride to produce cellulose acetates (Hummel, 2004). Other reported methods for esterification include base-catalyzed transesterification, and ring-opening reactions (Connors & Albert, 1973;Das, Ali, & Hazarika, 2014;Fan et al, 2013;Heinze et al, 2006;Fan et al, 2014). Pyridine and 4-dimethyl-amino pyridine (DMAP) (Hofle, Steglich, & Vorbruggen, 1978) have been used as acylation catalysts in chemical synthesis.…”

Evaluation of Amberlyst15 for hydrolysis of alkali pretreated rice straw and fermentation to ethanol

“…Its structure allows permeability of liquid or gaseous reactants to the site of hydrogen ions that is present throughout the bead, thus ensuring successful performance of the resin in catalytic reactions. Studies have been done on various chemical reactions being catalyzed by Amberlyst 15, like synthesis of levulinic acid from fructose [8], synthesis of pyrazolines [9], conversion of cellulose into cellulose acetate [10], conversion of cellulose into biodegradable surfactants like octyl-␣,␤-glucoside and octyl-␣,␤-xyloside [11] etc. Amberlyst 15 has also been known to aid the hydrolysis of ˇ(1→4) linkage of the cellulose backbone [12].…”