Results 11 to 20 of about 13,676 (263)

Semiheterogeneous Dual Nickel/Photocatalytic (Thio)etherification Using Carbon Nitrides [PDF]

, 2019
A carbon nitride material can be combined with homogeneous nickel catalysts for light-mediated cross-couplings of aryl bromides with alcohols under mild conditions.
Cristian Cavedon, Amiera Madani, Peter H. Seeberger, Bartholomäus Pieber   +3 more
core   +4 more sources

VI.—Observations on etherification [PDF]

Q. J. Chem. Soc.
Thomas H. Graham
openaire   +2 more sources

Carboxymethylcellulose-Based Hydrogel Obtained from Bacterial Cellulose

Molecules, 2023
In the present study, we have produced a sodium carboxymethylcellulose (CMC) hydrogel from a bacterial cellulose etherification reaction with chloroacetic acid in an alkaline medium.
Sanosh Kunjalukkal Padmanabhan, Leonardo Lamanna, Marco Friuli, Alessandro Sannino, Christian Demitri, Antonio Licciulli   +5 more
doaj   +1 more source

Steam-Induced Coarsening of Single-Unit-Cell MFI Zeolite Nanosheets and Its Effect on External Surface Brønsted Acid Catalysis. [PDF]

, 2020
Commonly used methods to assess crystallinity, micro-/mesoporosity, Brønsted acid site density and distribution (in micro- vs. mesopores), and catalytic activity suggest nearly invariant structure and function for aluminosilicate zeolite MFI two ...
Abdelrahman, Omar A, Alhassan, Saeed, Dauenhauer, Paul J, Guefrachi, Yasmine, Kumar, Gaurav, Li, Xinyu, Navrotsky, Alexandra, Sharma, Geetu, Tsapatsis, Michael, Vinter, Katherine P, Xu, Dandan, Zhang, Wei   +11 more
core   +2 more sources

Quantitative analysis of degree of substitution/molar substitution of etherified polysaccharide derivatives

Designed Monomers and Polymers, 2022
Due to the unique properties such as nontoxicity, biodegradability, availability from renewable resources, and cost-effectiveness, polysaccharides play a very important part in the science and technology field. The various chemically modified derivatives
Xue-Li Liu, Chun-Feng Zhu, Han-Chun Liu, Jia-Ming Zhu   +3 more
doaj   +1 more source

Carboxymethyl Cellulose from Banana Rachis: A Potential Edible Coating to Extend the Shelf Life of Strawberry Fruit

Agriculture, 2023
Cellulose derivatives, as edible coating for fruits and vegetables, have been broadly applied due to their availability, stability, solubility, safety, and low price.
Ahmed H. Abdullah, Mostafa A. A. Awad-Allah, Naglaa A. A. Abd-Elkarim, Zienab F. R. Ahmed, Eman M. A. Taha   +4 more
doaj   +1 more source

Preyssler Heteropolyacids in the Self-Etherification of 5-Hydroxymethylfurfural to 5,5′-[Oxybis(methylene)]bis-2-furfural Under Mild Reaction Conditions [PDF]

, 2017
The synthesis of 5,5′-[oxybis(methylene)]bis-2-furfural (OBMF) from 5-hydroxymethylfurfural (5-HMF) was studied using bulk and alumina-supported Preyssler heteropolyacids (HPAs). The formation of OBMF was related to the amount of Brønsted acid sites, and
Afonso, Carlos A. M., Martínez, José J., Portilla Zúñiga, Omar Miguel, Páez, Alexander, Rojas, Hugo A., Romanelli, Gustavo Pablo, Sathicq, Angel Gabriel   +6 more
core   +1 more source

Catalytic Conversion of 5-Hydroxymethylfurfural and Fructose to 5-Ethoxymethylfurfural over Sulfonated Biochar Catalysts

Bulletin of Chemical Reaction Engineering & Catalysis, 2023
5-Hydroxymethylfurfural (HMF) is a key platform compound that can be produced by the dehydration of typical carbohydrates like glucose and fructose. Among the derivatives of HMF, 5-ethoxymethylfurfural (EMF) is the etherification product of HMF with ...
Ziting Du, Fukun Li, Ronghe Yang, Qingya Cao, Delong Yang, Jinhang Dai   +5 more
doaj   +1 more source

APROVEITAMENTO DE RESÍDUO DE BIODIESEL PARA PREPARAÇÃO DE CARVÕES ÁCIDOS COM ELEVADA ATIVIDADE CATALÍTICA NA REAÇÃO DE ETERIFICAÇÃO DO GLICEROL

Química Nova, 2015
Environmentally friendly acid carbon (CG) catalysts, containing a high amount of sulfonated and oxygenated groups, were prepared from glycerin, a biodiesel waste.
Michelle Mantovani, Erik Moda Aguiar, Wagner Alves Carvalho, Dalmo Mandelli, Maraisa Gonçalves   +4 more
doaj   +1 more source

On the Search of a Silver Bullet for the Preparation of Bioinspired Molecular Electrets with Propensity to Transfer Holes at High Potentials

Biomolecules, 2021
Biological structure-function relationships offer incomparable paradigms for charge-transfer (CT) science and its implementation in solar-energy engineering, organic electronics, and photonics.
James Bennett Derr, Katarzyna Rybicka-Jasińska, Eli Misael Espinoza, Maryann Morales, Mimi Karen Billones, John Anthony Clark, Valentine Ivanov Vullev   +6 more
doaj   +1 more source