Results 21 to 30 of about 487,838 (354)

New synthetic phosphinate analogues of lecithin

open access: yesJournal of Lipid Research, 1971
The chemical syntheses of two new, completely nonhydrolyzable phosphinate analogues of lecithin are described. These have the structures ROCH2CH(OR)CH2CH2P(O)(O−)CH2CH2N+(CH3)3 and ROCH2CH(OR′)CH2P(O)(O−)CH2CH2CH2N+(CH3)3, where R = C18H37 and R ...
ARTHUR F. ROSENTHAL, SERGE V. CHODSKY
doaj   +1 more source

Complexes of aluminum, iron(III), and gallium(III) chlorides with ethers in synthesis of highly reactive polyisobutylene

open access: yesЖурнал Белорусского государственного университета: Химия, 2020
In this review, the latest achievements in the field of cationic polymerization of isobutylene catalyzed by the complexes of conventional Lewis acids with ethers are presented.
Sergei V. Kostjuk
doaj   +1 more source

One-Step Synthesis of Au-Ag Nanowires through Microorganism-Mediated, CTAB-Directed Approach

open access: yesNanomaterials, 2018
Synthesis and applications of one dimensional (1D) metal nanostructures have attracted much attention. However, one-step synthesis of bimetallic nanowires (NWs) has remained challenging.
Luhang Xu   +6 more
doaj   +1 more source

Crown Ether-Modified Clays and their Polystyrene Nanocomposites [PDF]

open access: yes, 2002
Crown ether-modified clays were obtained by the combination of sodium and potassium clays with crown ethers and cryptands. Polystyrene nanocomposites were prepared by bulk polymerization in the presence of these clays.
Jao, Hongyang   +3 more
core   +2 more sources

Synthesis of Biomass-Derived Ethers for Use as Fuels and Lubricants.

open access: yesChemSusChem, 2019
Ethers synthesized from biomass-derived compounds have exceptional properties as fuels, lubricants, and specialty chemicals and can serve as replacements for petroleum-derived products.
Julie E. Rorrer, A. Bell, F. Toste
semanticscholar   +1 more source

Epigenetic Effects of Polybrominated Diphenyl Ethers on Human Health. [PDF]

open access: yes, 2019
Disruption of epigenetic regulation by environmental toxins is an emerging area of focus for understanding the latter's impact on human health. Polybrominated diphenyl ethers (PBDEs), one such group of toxins, are an environmentally pervasive class of ...
Poston, Robert G, Saha, Ramendra N
core   +1 more source

Prenatal Serum Concentrations of Brominated Flame Retardants and Autism Spectrum Disorder and Intellectual Disability in the Early Markers of Autism Study: A Population-Based Case-Control Study in California. [PDF]

open access: yes, 2017
BackgroundPrior studies suggest neurodevelopmental impacts of polybrominated diphenyl ethers (PBDEs), but few have examined diagnosed developmental disorders.ObjectivesOur aim was to determine whether prenatal exposure to brominated flame retardants ...
Croen, Lisa A   +6 more
core   +2 more sources

Cu/ZrO2 Catalyst Modified with Y2O3 for Effective and Stable Dehydration of Glycerol to Acetol

open access: yesMolecules
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
doaj   +1 more source

Modeling and Prediction of Coal Ash Fusion Temperature based on BP Neural Network

open access: yesMATEC Web of Conferences, 2016
Coal ash is the residual generated from combustion of coal. The ash fusion temperature (AFT) of coal gives detail information on the suitability of a coal source for gasification procedures, and specifically to which extent ash agglomeration or ...
Miao Suzhen   +4 more
doaj   +1 more source

Gold Catalyzed Multicomponent Reactions beyond A3 Coupling

open access: yesMolecules, 2018
The preparation of complex architectures has inspired the search for new methods and new processes in organic synthesis. Multicomponent reactions have become an interesting approach to achieve such molecular diversity and complexity.
Renso Visbal   +3 more
doaj   +1 more source

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