نتایج جستجو برای: ionic salts

تعداد نتایج: 72320  

Journal: :Journal of lipid research 1989
D M Heuman

This paper describes the derivation of a bile salt monomeric hydrophobicity index that quantitatively defines the composite hydrophilic-hydrophobic balance of a mixture of bile salts. The index is based on the logarithms of bile salt capacity factors determined using reversed phase high performance liquid chromatography (HPLC) (stationary phase octadecyl silane; mobile phase methanol-water 70:3...

Journal: :Physical review letters 1993
Frenkel Stern Voronel Qian Newville

X-ray absorption ne structure (XAFS) measurements of mixed salts Rb x K 1?x Br and RbBr y Cl 1?y at their congruent melting points compositions reveal that their actual structure buckles about the NaCl average structure with an rms angular deviation from collinearity of 7-9. XAFS measures the buckling directly through three body correlations, and veriies the homogene-ity and randomness of the m...

2012
Raghu N. Bhattacharya J. Y. Kim

Cyclic voltammogram of ionic liquid and metallic-salts in ionic liquids were recorded. Cu/Sn/Zn stacked layers were electrodeposited and subsequently sulfurized in a tube furnace in elemental sulfur at 550oC. Thin films were characterized by X-ray diffraction, ICP-MS, and SEM. The device was characterized by I-V, QE and Mott-Schottky (capacitance-voltage) plot.

2016
J. Wittmer A. Johner J. Joanny

We present a theory of the complexation of polyanions by divalent cations. The formation of both mono-and dicomplexes is possible. Monocomplexation locally inverts the charge of the polyelectrolyte and transforms it into a polyampholyte. The formation of a dicomplex creates a bridge between charged monomers. The complexation constants for mono and dicomplexation strongly decrease at high ionic ...

2006
Saravanababu Murugesan John M. Wiencek Rex X. Ren Robert J. Linhardt

Benzoate-based room temperature ionic liquids (RTILs) have been synthesized with cations of varying structures. The thermal properties of these RTILs have been characterized to understand their structure–property relationship. A subset of these benzoate-RTILs was found to be capable of dissolving highly charged polysaccharides, glycosaminoglycans (GAGs) to an extent of 10 mg/ml while PF6 and BF...

Journal: :Shanlax International Journal of Arts, Science and Humanities 2022

Ionic conducting polymers are of considerable interest recently, as they have wide range applications including electrical storage devices. The present study is aimed at designing and characterizing one such ion polymer complexed with various ionic salts. Here, solid electrolyte films consisting Poly methyl methacrylate (PMMA) chloride salts (X) (X= KCl, NaCl, MgCl2) been prepared by the solven...

Journal: :Chemical Society reviews 2012
Mara G Freire Ana Filipa M Cláudio João M M Araújo João A P Coutinho Isabel M Marrucho José N Canongia Lopes Luís Paulo N Rebelo

During the past decade, ionic-liquid-based Aqueous Biphasic Systems (ABS) have been the focus of a significant amount of research. Based on a compilation and analysis of the data hitherto reported, this critical review provides a judicious assessment of the available literature on the subject. We evaluate the quality of the data and establish the main drawbacks found in the literature. We discu...

Journal: :Inorganic chemistry 1999
H. Donald B. Jenkins Helen K. Roobottom Jack Passmore Leslie Glasser

The linear generalized equation described in this paper provides a further dimension to the prediction of lattice potential energies/enthalpies of ionic solids. First, it offers an alternative (and often more direct) approach to the well-established Kapustinskii equation (whose capabilities have also recently been extended by our recent provision of an extended set of thermochemical radii). Sec...

Journal: :Inorganic chemistry 2008
Peter Nockemann Ben Thijs Tatjana N Parac-Vogt Kristof Van Hecke Luc Van Meervelt Bernard Tinant Ingo Hartenbach Thomas Schleid Vu Thi Ngan Minh Tho Nguyen Koen Binnemans

Imidazolium, pyridinium, pyrrolidinium, piperidinium, morpholinium, and quaternary ammonium bis(trifluoromethylsulfonyl)imide salts were functionalized with a carboxyl group. These ionic liquids are useful for the selective dissolution of metal oxides and hydroxides. Although these hydrophobic ionic liquids are immiscible with water at room temperature, several of them form a single phase with ...

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