نتایج جستجو برای: triethyl phosphate tep
تعداد نتایج: 105866 فیلتر نتایج به سال:
Additive manufacturing of complex porous polymer geometries is a new field advanced materials processing. Such can be used to fabricate monoliths serving as support for other material functions. Here, novel fabrication technology manufacture tailored 3D via additive and templating presented. The method based on replicating 3D-printed mold with solution polyvinylidenfluorid-triethyl phosphate (P...
To achieve both high speed and separation efficiency in the separation of a mixture of nerve and blister agent simulants, a high-aspect-ratio micro-fabricated multi-capillary column (MCC, a 50-cm-long, 450-μm-deep, and 60-μm-wide four-capillary column) was fabricated by the application of the microelectromechanical system (MEMS) techniques. Mixtures of chemical warfare agent (CWA) simulants - d...
Flame retardants (FRs) are used in many consumer products for fire safety reasons. Their use children’s car seats may result and vehicle occupants’ exposure to these compounds including inhalation through poor air quality. We have tested several from local retailers the presence of FRs. A number organophosphorus flame (OPFRs) were identified extracts (dichloromethane) eight foam materials taken...
Photocatalytic TiO2-PVDF/PMMA nano-composites flat sheet membranes were fabricated by phase inversion and then employed in a crossflow filtration pilot to remove model pollutants of various sizes charge from aqueous solution. The dope solution contained mixture PVDF PMMA as polymers, polyethylene glycol (PEG) polyvinylpyrrolidone (PVP) additives, triethyl phosphate (TEP) green solvent TiO2 immo...
In this work, a method for capillary electrophoresis (CE) hyphenated to a high-resolution mass spectrometer was presented for monitoring the stability of anions in ionic liquids (ILs) and in commonly used lithium ion battery (LIB) electrolytes. The investigated ILs were 1-methyl-1-propylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR13TFSI) and 1-methyl-1-propylpyrrolidinium bis(fluorosul...
The thermochemistry and kinetics of organophosphorus compounds were studied, with BAC-MP4 method estimations as a basis and PM3 semi-empirical estimations for many new compounds. New group additivity values were proposed for enthalpies of formation at 298 K, and entropies and heat capacities of species involving pentavalent phosphorus bonded to carbon, hydrogen, oxygen, fluorine, nitrogen, and ...
The decisive role of pericyclic reactions in the thermal decomposition of organophosphorus compounds
The understanding of the thermal decomposition chemistry chemical warfare nerve agents is largely limited by scarcity kinetic data. Because high toxicity these molecules, experimental determination their properties very difficult. In present work, a comprehensive detailed model for sarin and some simulants, i.e. di-isopropyl methyl phosphonate (DIMP), diethyl methylphosphonate (DEMP), triethyl ...
The enol phosphate 2,2-dichloro-1-(trichloromethyl)ethenyl diethyl phosphate (1), easily available by a Perkow reaction between hexachloroacetone and triethyl phosphite, reacts with sodium trifluoroethoxide/trifluoroethanol in the presence of cyclic 5-membered 1,3-dienes to furnish alpha,alpha,alpha',alpha'-tetrachloro-substituted[3.2.1]bicyclic ketones 2. A [4+3] cycloaddition of a tetrachloro...
Over the past decades, bioactive glass (BG) has been of a great interest in the bone regeneration field, due to its excellent biocompatibility, bioactivity and osteoconductivity. Herein, fabrication of bioactive glass as one-dimensional fibers by employing an Electrospinning process is reported. The Sol-Gel method was chosen considering the final fibers smoothness and homogeneity. Starting sol ...
A novel AIE poly(phosphoramidate) was synthesized through an ester ammonolysis reaction by using triethyl phosphate and diamines. Surprisingly, the obtained polymer is sensitive to Cu 2+ can be used as in situ visual detection agent for .
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