On Internal Pressure, Its Temperature Dependence, and the Structure of Liquid-Phase Systems

Kartsev, V. N.; Rodnikova, M. N.; Штыков, С. Н.

doi:10.1023/b:jory.0000041506.39568.81

Cited by 29 publications

(35 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dependence of ∆P i /∆T on W for the microemulsions (Fig. 3) resembles the most exotic dependences of coefficient ∆P i /∆T on the composition of binary aqueous solutions [12]: first, there are two virtually linear parts with different slopes; second, there is a break on the concentration dependence of the ∆P i /∆T coefficient; and third, the sign of the ∆P i /∆T coefficient changes, i.e., there is the concentration inversion of the temperature coefficient of internal pressure.…”

Section: Resultsmentioning

confidence: 60%

“…The internal pressure of homogeneous liquid-phase systems with a constant number of particles can be found from dilatometric measurements [12]: P i = P -T α / β T , where α is the thermal expansion coefficient and β í is the isothermal compressibility of the system. At the atmospheric pressure ( ê = ê atm ), ratio [ P /( α T / β T )] < 1 × 10 -3 ; therefore, 1 1 The exception is water near 4 ° C [11].…”

Section: Theoretical Approach To the Calculation Of Internal Pressurementioning

confidence: 99%

“…It is known that a waterlike structure has a negative temperature coefficient of internal pressure, whereas an oil-like structure has a positive coefficient [14]. For this reason, phase inversion must inevitably be accompanied by the concentration inversion of ∆P i /∆T coefficient.…”

Section: On the Problem Of Studymentioning

confidence: 99%

“…One of the characteristics of liquids that are directly related to intermolecular interactions is the internal pressure [11][12][13][14]:…”

Section: Introductionmentioning

confidence: 99%

“…The analysis of internal pressure for a wide range of individual liquids [11] and mixtures of liquids with a spatial H-bond network [12] showed that the temperature coefficient of internal pressure, ∂ P i / ∂ T , is highly sensitive to the structural organization of liquid-phase systems at the nanoscale level. This is why it was considered possible to study the structural states and structural transitions in MEs by the method of internal pressure determination.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Precision Dilatometry of Microemulsions with Anionic Surfactants

2005

Self Cite

View full text Add to dashboard Cite

Density ρ , isothermal compressibility β í , and thermal expansion coefficient α are measured with high accuracy at 15 and 25 ° C for water-n -octane-sodium dodecyl sulfate-n -pentanol microemulsions with a water/oil weight ratio varying from 0.05 to 4. The internal pressure of the microemulsions is shown to be calculable from the results of dilatometric measurements. The phenomenon of temperature inversion is revealed for the temperature coefficient of internal pressure ∆ P i / ∆ T of the microemulsions. The analysis of this coefficient makes it possible to distinguish between three regions of the structural state in the microemulsions and a continuous structural transition in the associated microemulsions.

show abstract

Section: Resultsmentioning

confidence: 60%

Section: Theoretical Approach To the Calculation Of Internal Pressurementioning

confidence: 99%

Section: On the Problem Of Studymentioning

confidence: 99%

“…One of the characteristics of liquids that are directly related to intermolecular interactions is the internal pressure [11][12][13][14]:…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Precision Dilatometry of Microemulsions with Anionic Surfactants

2005

Self Cite

View full text Add to dashboard Cite

show abstract

Study of the Effects of Temperature and Pressure on the Thermodynamic and Acoustic Properties of 2-Methyl-1-butanol at Temperatures from 293K to 318K and Pressures up to 100MPa

Dzida

2009

Int J Thermophys

View full text Add to dashboard Cite

The speeds of sound in 2-methyl-1-butanol were measured at temperatures from 293 K to 318 K and pressures up to 101 MPa. The densities were measured in the same temperature range under atmospheric pressure. The isobaric specific heat capacities were measured at atmospheric pressure and temperatures from 284 K to 355 K. The densities, isobaric heat capacities, isobaric thermal expansions, isentropic compressibilities, isothermal compressibilities, and internal pressures as functions of temperature and pressure were calculated using the experimental speeds of sound under elevated pressures together with the densities and heat capacities at atmospheric pressure. The effects of temperature and pressure on the isobaric thermal expansion and internal pressure of 2-methyl-1-butanol are discussed and compared with those of pentan-1-ol, 2-methyl-2-butanol, and pentan-3-ol.

show abstract

Thermodynamic Study of Oxyethylated Glycols and Their Mixtures with Tertiary Carboxamides

Zaichikov

2005

Russ J Gen Chem

View full text Add to dashboard Cite

The contributions into the total energy of intermolecular interactions in oxyethylated ethylene glycol derivatives were estimated in terms of a model approach that uses inner pressure as a measure of nonspecific interactions in a liquid. Increased number of ether groups in ethylene glycols increases the nonspecific contribution and decreases specific contributions. Unlike diethylene glycol, triethylene glycol and tetraethylene glycol contain H-bond networks in the range 298.153308.15 K. The enthalpies of mixing of tertiary amides with tetraethylene glycol were measured and compared with those for ethylene glycol, diethylene glycol, and triethylene glycol. The effect of the structural and thermodynamic properties of the components on the integral and differential thermochemical characteristics of mixtures of glycols with N,N-disubstituted amides was discussed.

show abstract

On Internal Pressure, Its Temperature Dependence, and the Structure of Liquid-Phase Systems

Cited by 29 publications

References 3 publications

Precision Dilatometry of Microemulsions with Anionic Surfactants

Precision Dilatometry of Microemulsions with Anionic Surfactants

Study of the Effects of Temperature and Pressure on the Thermodynamic and Acoustic Properties of 2-Methyl-1-butanol at Temperatures from 293K to 318K and Pressures up to 100MPa

Thermodynamic Study of Oxyethylated Glycols and Their Mixtures with Tertiary Carboxamides

Contact Info

Product

Resources

About