نتایج جستجو برای: magnetic dicationic ionic liquid

تعداد نتایج: 582743  

ژورنال: مواد پرانرژی 2014

.Energetic ionic liquids compared to conventional high energy compounds, such as TNT, HMX and RDX has a low vapor pressure, high thermal stability and adjustable chemical and physical properties and high being liquid range. A new class of ionic salts that have a large number of nitrogen on their structure have distinctive characteristics such as high heat of formation and high viscosity, comp...

E. Rezaee Nezhad S. Karimian S. Sajjadifar

The Magnetically recoverable Fe3O4 nanoparticle and the supported brønsted acidic ionic liquid 1-methyl-3-(3-trimethoxysilylpropyl) imidazolium hydrogen sulfate (Fe3O4-IL-HSO4) were synthesized and used as efficient magnetic catalysts for the regioselective thiocyanation of aromatic and heteroaromatic compounds at room temperature in Water: Ethanol. This procedure provided the target thiocyanat...

Journal: :ACS Macro Letters 2021

Both imidazolium and 1,2,4-triazolium cations are important functional moieties widely incorporated as building blocks in poly(ionic liquid)s (PILs). In a classical model, PIL usually contains either or its repeating unit. Herein, via exploiting the slight reactivity difference of alkyl bromide with imidazole 1,2,4-triazole at room temperature, we synthesized dual-cationic homopolymers carrying...

ژورنال: مواد پرانرژی 2016

Some mono and di imidazolium-based ionic liquids with dicyanamide were synthesized and characterized. The synthesis of these compoundes were done based on alkylation reaction of N-methylimidazole followed by anion exchange. The structure of novel ionic liquids were identified by using FT-IR, 1HNMR spectroscopies and elemental analysis. Among the synthesized ionic liquids, thermal properties of ...

2015
Po-Jung Huang Ken-Lin Chang Jung-Feng Hsieh Shui-Tein Chen

Cellulase from Aspergillus niger was immobilized onto β-cyclodextrin-conjugated magnetic particles by silanization and reductive amidation. The immobilized cellulase gained supermagnetism due to the magnetic nanoparticles. Ninety percent of cellulase was immobilized, but the activity of immobilized cellulase decreased by 10%. In this study, ionic liquid (1-butyl-3-methylimidazolium chloride) wa...

Journal: :Journal of Molecular Liquids 2021

Two series of new dicationic stilbazolium salts containing tosylate and triflimide counterions, respectively, were synthesized characterized by spectroscopic techniques elemental analysis. Despite their promesogenic structures, none these are mesomorphous, instead they solely exhibit crystalline polymorphism, as deduced from differential scanning calorimetry, polarizing optical microscopy varia...

Journal: :physical chemistry research 2016
hemayat shekaari mohammed taghi zafarani-moattar fariba ghaffari

the density (d), speed of sound (u) and electrolytic conductivity (λ) for systems containing acetaminophen, ionic liquid {1-octyl-3-methyl imidazolium bromide, [omim] br} and water have been measured at t = 293.15-308.15 k. the measured data have been applied to calculate, standard partial molar volume ( ), hepler’s constant , apparent molar isentropic compressibility (kφ), transfer volume ( ),...

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