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Simple citric acid-catalyzed surface esterification of cellulose nanocrystals
(Elsevier, 2017-02)
A simple straightforward route for the surface esterification of cellulose nanocrystals (CNC) is herein proposed. CNC obtained from microcrystalline cellulose were acetylated using as catalyst citric acid, a α-hydroxy acid ...
Microwave-Assisted Derivatization of Cellulose in an Ionic Liquid: An Efficient, Expedient Synthesis of Simple and Mixed Carboxylic Esters
(JOHN WILEY & SONS INC, 2010)
Microwave (MW)-assisted cellulose dissolution in ionic liquids (ILs) has routinely led either to incomplete biopolymer solubilization, or its degradation. We show that these problems can be avoided by use of low-energy MW ...
Synthesis and conservation of cellulose nanocrystals
(Elsevier, 2020-06)
This work deals with the preparation of cellulose nanocrystals (CNC) from microcrystalline cellulose by acid hydrolysis, discusses how their characteristics varied according to the drying technique used for their conservation ...
Isolation and Characterization of Nanocellulose Obtained from Industrial Crop Waste Resources by Using Mild Acid Hydrolysis
(Tech Science Press, 2018)
Cellulose, microcrystalline cellulose and nanocellulose were prepared from three agricultural waste resources:
pineapple leaf (PALF), banana rachis (BR), and sugarcane bagasse (SCB). Each waste resource was first converted ...
Biocompósitos de matriz glioxal-fenol reforçada com celulose microcristalina
(Associação Brasileira de Polímeros, 2010)
Glioxal pode ser obtido a partir de biomassa (como da oxidação de lipídeos) e não é tóxico ou volátil, tendo sido por isso utilizado no presente trabalho como substituto de formaldeído na preparação de resina fenólica do ...
Diseño de un proceso industrial para la obtención de celulosa microcristalina a partir del Pennisetum purpureum mediante combinación de hidrólisis ácida y alcalina para la Asociación Agropecuaria “Maconta Arriba”.
(Escuela Superior Politécnica de Chimborazo, 2023-07-19)
The objective was to design an industrial process to obtain microcrystalline cellulose from Pennisetum Purpureum through a combination of acid and alkaline hydrolysis. The raw material was characterized by physical-chemical ...
Preparo e caracterização de novos compósitos de celulose bacteriana
(Universidade Estadual Paulista (Unesp), 2006)
A celulose bacteriana obtida pela cultura de Acetobacter xylinum apresenta alta massa molecular e alta cristalinidade quando comparada à celulose vegetal. Devido à auto-organização, microcristalinidade e estrutura ...
Interaction of modified celluloses and pectins with gluten proteins
(Elsevier, 2014-03)
Physical and chemical techniques were applied to characterize the type of interaction between hydrocolloids and the gluten network in wheat dough, with and without NaCl. Modified celluloses (microcrystalline cellulose, ...