entropy of mixing

[′en·trə·pē əv ′mik·siŋ]

(physical chemistry)

After mixing substances, the difference between the entropy of the mixture and the sum of the entropies of the components of the mixture.

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References in periodicals archive ?

HEAs are also characterized by their configurational entropy of mixing ([DELTA][S.sub.conf]) of at least 1.5R, where R = 8.314 J x [mol.sup.-1] x [K.sup.-1] is the gas constant.

Effect of Molybdenum on the Corrosion Behavior of High-Entropy Alloys CoCrFe[Ni.sub.2] and CoCrFe[Ni.sub.2][Mo.sub.0.25] under Sodium Chloride Aqueous Conditions

Our non-crystallizable molecular glass mixture binders have very high entropy of mixing value, and high glass transition temperature necessary to transform those OLED materials into useful formulations.

Molecular Glasses[TM] Files Patents on Non-Crystallizable Sensitized Layers for OLED and Other Organic Electronic Devices Based on Non-Electroluminescent, Non-Crystallizable

During the process of polymerization due to the transition of monomer molecules to polymer chain, there is a sharp decrease in the combinatorial entropy of mixing of the system.

Phase separation in the polyurethane/poly(2-hydroxyethyl methacrylate) semi-interpenetrating polymer networks synthesized by different ways

This means the entropy of mixing ([DELTA]S= k ln[ohm]) is reduced and if the enthalpy of mixing is unfavorable, then the free energy of mixing will be insufficient and spontaneous phase separation will occur.

Multifunctional shampoos: polymers play a major role in the formulation of these hair care products. Here's an update on the latest advances regarding this chemistry

The second term represents the geometric entropy of mixing, assuming the additive to behave as a hard sphere.

Physical Chemistry of a Phosphite Processing Stabilizer in Polypropylene. Part 1: Solubility

During thermoset crosslinking within a thermoplastic, phase separation is usually driven by the decrease in the entropy of mixing, raising the free energy of the system.

Mechanical and Viscoelastic Properties of Semi-Interpenetrating Polymer Networks of (Poly (Vinyl Chloride)/Thermosetting Resin Blends

However, the entropy of mixing polymers [S.sup.M] does not play a smaller role (8), especially its noncombinatorial part, arising as a result of disintegration of initial structures of individual polymers and of the formation of a new structure of the blend.

Polyurethane + polyacrylate latex mixtures: synthesis, characterization and properties