Equations of state for Langmuir monolayers with two-dimensional phase transitions

Article Abstract:

Research was conducted to examine a new equation of state valid for Langmuir monolayers. The theoretical model takes into account the 2D aggregation of monolayer material and the compliance with the important case that the molar area of molecules within an aggregate can differ from that characteristic for free monomers. The Pi-A isotherms for Langmuir monolayers of different amphiphiles are in good agreement with the proposed model for physically reliable values of model parameters.

Models, Phase transformations (Statistical physics), Phase transitions (Physics), Monomolecular films, Thin films, Multilayered, Multilayered thin films

---

Quantum chemical analysis of the thermodynamics of 2D cluster formation of n-carboxylic acids at the air/water interface

Article Abstract:

The thermodynamic characteristics of the cluster formation for fatty acids with the general formula of nondissociated n-carboxylic acids C(sub n)H(sub 2n+1)COOH with n = 5-15 are studied. The contributions of the CH2 groups to the thermodynamic characteristics of alcohols and acids are the same and the differences in the formation of clusters by these substances are attributed to the differences in the structure and interactions of relevant functional groups.

Science & research, Thermodynamics, Quantum chemistry, Carboxylic acids, Alcohols, Atomic properties

---

Similar abstracts:

• Abstracts: Anomalous temperature dependence of domain shape in Langmuir monolayers: Role of dipolar interaction. Structure and temperature behavior of metallo-supramolecular assemblies
• Abstracts: Equilibrium and dynamics of soluble surfactant penetration into a Langmuir monolayer of a 2D aggregating homologue
• Abstracts: Theoretical studies of the tautomeric equilibria for five-member N-heterocycles in the gas phase and in solution
• Abstracts: Shape selective growth of CdS one-dimensional nanostructures by a thermal evaporation process. Controlled synthesis and photoluminescence properties of ZnS nanowires and nanoribbons
• Abstracts: Surface modification of low-density polyethylene by inductively coupled argon plasma. Entropically mediated polyolefin blend segregation at buried sapphire and air interfaces investigated by infrared-visible sum frequency generation vibrational spectroscopy

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.