Results 251 to 260 of about 819,250 (296)

Polymer/Solvent Interaction Parameters

Rubber Chemistry and Technology, 1966
Abstract Solutions in which one of the components is a high polymer and the other component is a small-molecule solvent behave in a markedly different manner than do solutions of low molecular weight components. For example, the latter obey Raoult's law if the heat of mixing is negligible; however, many polymer solutions show pronounced ...
C. J. Sheehan, A. L. Bisio
openaire   +1 more source

Solvent effect - Classification of parameters describing influence of solvents

Collection of Czechoslovak Chemical Communications, 1983
On the basis of factor analysis of data matrices containing 35 empirical and non-empirical parameters for 85 solvents (or a limited matrix of 20 parameters for 51 solvents), an orthogonal set of parameters with normed normal distribution has been suggested which characterizes influence of the solvents on chemical processes.
Petr Svoboda, Oldřich Pytela, Miroslav Večeřa   +2 more
openaire   +1 more source

Application of Solvent Parameters for Predicting Organogel Formation

AAPS PharmSciTech, 2018
Solvents, accounting the majority of the organogel system, have a tremendous impact on the characteristics of gels. To date, there is a large variety of organogel systems; relatively few have been investigated in the field of structure-solvent correlation.
Beibei, Hu, Wei, Sun, Baixue, Yang, Heran, Li, Liuchenzi, Zhou, Sanming, Li   +5 more
openaire   +2 more sources

Dependence of Solute Solubility Parameters on Solvent Polarity

Journal of Pharmaceutical Sciences, 1985
In nonpolar solvents a solute may self-associate through polar interactions, exposing its nonpolar surface to a solvent with a low solubility parameter, delta 1. In polar solvents a solute is solvated, presumably, by the polar groups of the solvent.
A, Martin, P L, Wu, Z, Liron, S, Cohen
openaire   +2 more sources

Polymer–Solvent Interaction Parameter χ

2007
14.1 Definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 177 14.2 Methods of Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 14.3 General Features and Significance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Robert A. Orwoll, Pamela A. Arnold
openaire   +1 more source

The Polymer-Solvent Interaction Parameter X

Rubber Chemistry and Technology, 1977
Abstract The interaction parameter X has been defined as a measure of the chemical potential of the solvent in solutions with a polymeric solute. Consequently a number of equilibrium properties can be expressed as functions of X. Values of X determined from these properties reveal that for most systems this quantity increases with the volume ...
openaire   +1 more source

Estimation of solvent-tolerance of bacteria by the solvent parameter log P

Journal of Fermentation and Bioengineering, 1991
The solvent-tolerance of Gram-negative and Gram-positive bacteria were determined by the solvent parameter, log P. The solvent-tolerance of bacteria tested were in the following order, Pseudomonas>Escherichia, Serratia, Klebsiella>Proteus, Achromobacter, Acinetobacter>Alteromonas, Aeromonas, Flavobacterium>Alcaligenes, Bacillus>Agrobacterium ...
Akira Inoue, Koki Horikoshi
openaire   +1 more source

Solute–solvent interaction parameters by gas chromatography

Journal of Chromatography A, 2004
Gas–liquid distribution coefficients at ideal dilution in non-volatile solvents can be measured by gas chromatography. The numerical value of a coefficient depends on the choice of the concentration unit in the solvent and in the gas phase. The relationships between different coefficients characterizing gas–liquid equilibria are discussed and ...
Ervin sz. Kováts, György Fóti, András Dallosb   +2 more
openaire   +1 more source

On the distribution of the bulk-solvent correction parameters

Acta Crystallographica Section D Biological Crystallography, 2000
The distribution of the bulk-solvent correction parameters (B(sol), k(sol)) (as determined with an exponential scaling algorithm based on Babinet's principle) for 219 crystal structures deposited in the Protein Data Bank is presented. The distribution shows that (i) the range of values observed is far wider than the usually cited parameter range, (ii ...
N M, Glykos, M, Kokkinidis
openaire   +2 more sources

A first-principles alternative to empirical solvent parameters

Physical Chemistry Chemical Physics
This manuscript presents a new first principles solvent parameter that unifies the myriad empirical solvent parameters used throughout chemistry.
Kasimir P. Gregory, Erica J. Wanless, Grant B. Webber, Vincent S. J. Craig, Alister J. Page   +4 more
openaire   +2 more sources