نتایج جستجو برای: polyionic liquids

تعداد نتایج: 21576  

Journal: :Physical chemistry chemical physics : PCCP 2016
Vijay Beniwal Anil Kumar

Physico-chemical properties of liquid mixtures in general display large deviations from linear behaviour, arising out of complex specific and non-specific intermolecular interactions. The polarity of liquid mixtures displaying large positive and negative deviations can be minimized and linear mixing can be achieved in liquids using a pseudo-solvent methodology. The work described herein is desi...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Susan Perkin Mathieu Salanne Paul Madden Ruth Lynden-Bell

2017
Morton M. Denn Daniel Bonn

Yield-stress liquids are materials that are solid below a critical applied stress and flow like mobile liquids at higher stresses. Classical descriptions of yield-stress liquids, which have been the basis for asymptotic and computational studies for five decades, are inadequate to describe many recent experimental observations, and it is clear that the time dependence of microstructure must be ...

Journal: :Chemical communications 2009
R Vijayaraghavan M Surianarayanan V Armel D R MacFarlane V P Sridhar

The exothermic behaviour and intrinsic safety of a number of ionic liquids being considered for battery and solar cell applications have been investigated at elevated temperatures by analysing data from accelerated rate calorimetric (ARC) studies.

Journal: :physical chemistry research 0
mehrdad honarmand department of mechanics, tiran branch, islamic azad university, isfahan, iran mohammad reza haghighat nezhad chemical engineering department, shahreza branch, islamic azad university, shahreza, iran vahid pourgharib department of mechanics, tiran branch, islamic azad university, isfahan, iran mohsen beigi department of mechanics, tiran branch, islamic azad university, isfahan, iran

there are a number of techniques available to estimate saturated-liquid molar or specific volumes or densities of liquids. in this study, a new empirical correlation is presented to calculate volume of saturated liquids as a function of critical volume, reduced temperature and acentric factor. an optimization algorithm is utilized to obtain unknown parameters of this correlation by fitting them...

Journal: :journal of oil, gas and petrochemical technology 2014
saideh marhamati amir abbas izadpanah ahmad azari mojtaba rezaei

the simplified perturbed chain statistical associating fluid theory (spc-saft) equation of state (eos) was proposed to describe the thermodynamic properties of pure ionic liquids (ils). a set of spc-saft parameters for 2 ils was obtained by fitting the experimental liquid densities data over a wide range of temperature at atmospheric pressure. good agreement with experimental density data was o...

Journal: :organic chemistry research 2016
khodabakhsh niknam mohsen khataminejad

a sequential process strategy was introduced for the synthesis of 2,3,4,5-tetrasubstituted pyrroles by the formation of benzoin from the corresponding aromatic aldehyde and followed by condensation reaction with 1,3-dicarbonyl compounds and ammonium acetate in the presence of diethylene glycol-bis(3-methylimidazolium) dihydroxide as catalyst in refluxing ethanol. the recycled catalyst could be ...

Journal: :Analytical chemistry 2003
Simon M Mwongela Abdulqawi Numan Nicole L Gill Rezik A Agbaria Isiah M Warner

In this study, we report the use of ionic liquids as modifiers in the separation of achiral and chiral analytes in micellar electrokinetic chromatography. In this investigation, polymeric surfactants and ionic liquids were added to a low-conducting buffer solution. The polymeric surfactants used in this study were poly(sodium N-undecylelinic sulfate) and poly(sodium oleyl-l-leucylvalinate). The...

2015
Shiguo Zhang Kaoru Dokko Masayoshi Watanabe

Solidification of fluidic ionic liquids into porous materials yields porous ionic networks that combine the unique characteristics of ionic liquids with the common features of polymers and porous materials. This minireview reports the most recent advances in the design of porous ionic liquids. A summary of the synthesis of ordered and disordered porous ionic liquid-based nanoparticles or membra...

Journal: :The journal of physical chemistry. B 2009
Huimin Luo Gary A Baker Je Seung Lee Richard M Pagni Sheng Dai

Protic ionic liquids are synthesized via proton transfer from acids to organic bases. One of the key issues associated with conventional protic ionic liquids is the thermal instability resulting from temperature-induced decomposition via reverse proton transfer. This shortcoming significantly hampers the use of these protic ionic liquids in separations, electrochemical capacitors, fuel cells, a...

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