Results 21 to 30 of about 383,517 (291)

Safety assessment of the substance dimethyl carbonate for use in food contact materials

open access: yesEFSA Journal, 2017
This scientific opinion of the EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF Panel) deals with the safety assessment of dimethyl carbonate used as monomer for making a polycarbonate prepolymer with 1,6‐hexanediol and
EFSA Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids (CEF)   +24 more
doaj   +1 more source

The future of isosorbide as a fundamental constituent for polycarbonates and polyurethanes

open access: yesGreen Chemistry Letters and Reviews, 2021
Isosorbide is a biobased compound which could become in the near future an advantageous competitor of petroleum-derived components in the synthesis of polymers of different nature.
Olga Gómez-de-Miranda-Jiménez-de-Aberasturi   +11 more
doaj   +1 more source

Synthesis of Hydrotalcites from Waste Steel Slag with [Bmim]OH Intercalated for the Transesterification of Glycerol Carbonate

open access: yesMolecules, 2020
Ca-Mg-Al hydrotalcites were prepared by coprecipitation from Type S95 steel slag of Shanghai Baosteel Group as supports of ionic liquid in this paper. Five basic ionic liquids [Bmim][CH3COO], [Bmim][HCOO], [Bmim]OH, [Bmim]Br and ChOH were prepared and ...
Guanhao Liu, Jingyi Yang, Xinru Xu
doaj   +1 more source

Synergy Effect of High-Stability of VS4 Nanorods for Sodium Ion Battery

open access: yesMolecules, 2022
Sodium-ion batteries (SIBs) have attracted increasing interest as promising candidates for large-scale energy storage due to their low cost, natural abundance and similar chemical intercalation mechanism with lithium-ion batteries.
Yi Chen   +6 more
doaj   +1 more source

Solid-liquid equilibria for the dimethyl ether plus carbon dioxide binary system [PDF]

open access: yes, 2010
A recently built experimental setup was employed for the estimation of the solid-liquid equilibria of alternative refrigerants systems. The behavior of dimethyl ether (DME) + carbon dioxide was measured down to temperatures of 131.6 K.
Di Nicola, G.   +11 more
core   +1 more source

Esterification of glycerol from biodiesel production to glycerol carbonate in non-catalytic supercritical dimethyl carbonate [PDF]

open access: yes, 2016
Conversion of glycerol from biodiesel production to glycerol carbonate was studied by esterification with dimethyl carbonate in a non-catalytic supercritical condition.
Shiro Saka   +3 more
core   +6 more sources

A Novel One-Pot and One-Step Microwave-Assisted Cyclization-Methylation Reaction of Amino Alcohols and Acetylated Derivatives with Dimethyl Carbonate and TBAC

open access: yesThe Scientific World Journal, 2014
A simple and efficient microwave-assisted methodology for the synthesis of 4-substituted-3-methyl-1,3-oxazolidin-2-ones from amino alcohols catalyzed by a ionic liquid was developed.
Adrián Ochoa-Terán   +2 more
doaj   +1 more source

A review on transesterification of propylene carbonate and methanol for dimethyl carbonate synthesis

open access: yesCarbon Resources Conversion, 2019
Dimethyl carbonate (DMC) is widely applied in various fields according to its outstanding physico-chemical properties, especially as a solvent in electrolyte of lithium-ion batteries. More than 90% DMC in China is industrially produced from the propylene
Wenjie Deng   +3 more
doaj   +1 more source

Methylation of kukersite kerogen – estimation of the content of free hydroxyl groups [PDF]

open access: yesOil Shale
Derivatization of the kerogen backbone changes its chemical reactivity profile. In this study, kukersite kerogen was methylated with dimethyl carbonate.
Kristi Rõuk   +6 more
doaj   +1 more source

Preparation, physical-chemical characterisation and cytocompatibility of calcium carbonate cements [PDF]

open access: yes, 2006
The feasibility of calcium carbonate cements involving the recrystallisation of metastable calcium carbonate varieties has been demonstrated. Calcium carbonate cement compositions presented in this paper can be prepared straightforwardly by simply mixing
Bareille, Reine   +3 more
core   +1 more source

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