Results 51 to 60 of about 575,314 (203)

Application of Glycerol in the Synthesis of Hyperbranched and Highly Branched Polyethers: Characterization, Morphology and Mechanism Proposal [PDF]

open access: yesMaterials Research, 2019
Hyperbranched biopolymers is an important class of polymer that is used in different areas, mainly in biomedicine. AB2 monomers are crucial to the development of a "hyperbranched" architecture of polyglycerol, being glycidol the most commonly used, even ...
Diego Botelho Campelo Leite   +2 more
doaj   +1 more source

K2CO3-Modified Smectites as Basic Catalysts for Glycerol Transcarbonation to Glycerol Carbonate. [PDF]

open access: yesInt J Mol Sci
A novel and cost-effective heterogeneous catalyst for glycerol carbonate production through transesterification was developed by impregnating smectite clay with K2CO3. Comprehensive structural and chemical analyses, including X-ray diffraction Analysis (XRD), Scanning Electron Microscopy (SEM)-Electron Dispersion Spectroscopy (EDS), Fourier Transform ...
Snoussi Y   +5 more
europepmc   +3 more sources

Synthesis of High-Molecular-Weight Multifunctional Glycerol Polyhydroxyurethanes PHUs

open access: yesMolecules, 2016
Glycerol carbonate acrylate is a 5-membered cyclic carbonate synthesized from glycerol that is used as a chemical coupling agent and has proven highly suitable for use in the synthesis of multifunctional polyhydroxyurethanes (PHUs).
Bassam Nohra   +4 more
doaj   +1 more source

Mixed oxides from calcined layered double hydroxides for glycerol carbonate production to contribute to the biodiesel economy

open access: yesFrontiers in Chemical Engineering, 2022
The glycerol generated as a by-product in the production of biodiesel could be used as a renewable raw material to economically promote the production process.
Argüello Dalma   +3 more
doaj   +1 more source

The Synthesis of Glycerol Carbonate from Biodiesel By product Glycerol and Urea over Amberlyst 15

open access: yesJurnal Bahan Alam Terbarukan, 2017
The growing utilization of biodiesel as a renewable fuel has generated a large surplus of glycerol as a major byproduct. The prices of glycerol continue to drop in such an oversaturated market.
Reviana Inda Dwi Suyatmo   +2 more
doaj   +1 more source

Perception of glycerol carbonate as green chemical: Synthesis and applications

open access: yesCatalysis Communications, 2022
Glycerol carbonate (GC) is a prominent component in industrial practice and has a remarkable potential for the sophisticated applications. While GC has come into prominence due to the perceived overflow of glycerol (GLY) as a coproduct of biodiesel ...
Swapna M. Gade   +2 more
doaj   +1 more source

Enhanced conversion of Glycerol to Glycerol carbonate on modified Bio-Char from reed plant

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2019
The surplus glycerol produced from biodiesel production process as a by-product with high quantity can be considered as a good source to prepare glycerol carbonate (GC) whereas with each 1000 kg from biodiesel obtains 100 kg from glycerol.
shafaa dhyaa mohamed, Muthana J. Ahmed
doaj   +1 more source

Kinetics Modeling of Glycerol Carbonate Synthesis from Glycerol and Urea over Amberlyst-15 Catalyst

open access: yesIndonesian Journal of Chemistry, 2019
Synthesize of glycerol carbonate from glycerol and urea is an attractive path as glycerol carbonate has a large potential as a green solvent. The aim of the present study was to develop a kinetic model of glycerol carbonate synthesis with amberlyst-15 ...
Hary Sulistyo   +3 more
doaj   +1 more source

Li掺杂CeO2固体碱催化甘油酯交换合成碳酸甘油酯

open access: yesZhongguo youzhi, 2023
针对由甘油制备碳酸甘油酯的酯交换法中催化剂制备方法复杂、活性组分易流失等问题,采用一锅法制备了Li掺杂CeO2固体碱催化剂。对催化剂进行了X射线衍射(XRD)、扫描电镜(SEM)、透射电镜(TEM)、BET、X射线光电子能谱(XPS)、CO2程序升温脱附(CO2-TPD)等表征。以甘油转化率和碳酸甘油酯产率为指标,对催化剂进行了筛选,并采用单因素实验对甘油酯交换合成碳酸甘油酯的工艺条件进行了优化,同时考察了催化剂的重复使用性能。结果表明:Li与CeO2之间能够产生协同作用 ...
陈一峰,范明明,冷炎,蒋平平,张萍波 CHEN Yifeng, FAN Mingming, LENG Yan, JIANG Pingping, ZHANG Pingbo
doaj   +1 more source

Conférence Chevreul

open access: yesOléagineux, Corps gras, Lipides, 2004
In this study two major strategy of transformation of the vegetables substrate are exposed. The first approach is related to the study of the catalytic heterocyclisation of natural glycerin in the glycerol carbonate.
Mouloungui Zéphirin
doaj   +1 more source

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