Results 31 to 40 of about 320,740 (318)
Renewable thermoplastics – Starch fatty acid esters as alternatives to synthetics
Thermoplastics are an important class of polymers that find widespread use in a broad variety of applications. Because of environmental concerns regarding the lack of biodegradability of synthetic thermoplastics, green alternatives are increasingly ...
Peggy Hermann, Thomas Heinze
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Phosphate Esters, Thiophosphate Esters and Metal Thiophosphates as Lubricant Additives [PDF]
Phosphate esters, thiophosphate esters and metal thiophosphates have been used as lubricant additives for over 50 years. While their use has been extensive, a detailed knowledge of how they work has been a much more recent development. In this paper, the
Johnson, David W., Hils, John E.
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Esterification of propanoic acid in the presence of a homogeneous catalyst [PDF]
Esters are organic compounds that are widely used even on an industrial scale, so their production has been extensively investigated. The aim of this work is to carry out the optimization process of esterification of propionic acid with lower monohydric ...
Kastratović Vlatko R. +2 more
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Electrochemical Synthesis of Sulfinic Esters from Alcohols and Thiophenols [PDF]
Electrochemical oxidative couplings between S–H and O–H bonds are achieved herein directly from readily-available alcohols and thiophenols, affording a series of diverse sulfinic esters.
Liang, Xu, Yu, Wei, Yang, He
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Esterification of malic acid on various catalysts
Objectives. The study aims to identify the optimal choice of an effective catalyst for the esterification of malic acid to produce esters of high purity. Methods. To determine the qualitative and quantitative composition of reaction masses, the following
N. S. Kuzmina +2 more
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Cu/ZrO2 Catalyst Modified with Y2O3 for Effective and Stable Dehydration of Glycerol to Acetol
Glycerol is a main by-product of biodiesel production, and its further processing is essential for the biorefinery. In this paper, a highly active and stable catalyst for the catalytic dehydration of glycerol to acetol is obtained by modifying a Cu-Zr ...
Zhoubing Liang +5 more
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The aroma profiles of two sweet cherry cultivars Kordia and Vanda were investigated during storage at different oxygen and carbon dioxide levels and at a low temperature using solid phase microextraction gas chromatography combined with mass spectrometry
J. Goliáš, J. Létal, O. Veselý
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Effects of a Small Increase in Carbon Dioxide Pressure during Fermentation on Wine Aroma
The present study tested the effect of a slight increase in pressure (from 0 to 1 bar) during the fermentation on the wine aroma profile. Fermentations were carried out with a commercial dry yeast on Sangiovese juice in the absence of berry skins.
Lorenzo Guerrini +5 more
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Effect of catalytic conditions on the synthesis of new aconitate esters [PDF]
Sugar cane is a crop which generates large amounts of biomass and a juice rich in highvalue natural molecules. After extracting sugar from the juice, the recovering of various compounds such as organic acids contained in molasses could contribute to ...
Lacaze-Dufaure, Corinne +10 more
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A novel ruthenium complex binding to two subtly different aminophosphine ligands, (o-PPh2C6H4CH2NH2)(o-PPh2C6H4NH2)RuCl2, was successfully isolated. This bis(aminophosphine)–ruthenium complex shows efficient activity in both dimethyl oxalate (DMO) and ...
Xiaolong Fang +8 more
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