Theoretical modelling of Langmuir monolayers

TL;DR

This paper develops continuum models for Langmuir monolayers using self-consistent field theory and Monte Carlo simulations to understand phase transitions, tilt order, and molecular orientation.

Contribution

It introduces a combined theoretical and simulation approach to analyze phase behavior and tilt phenomena in Langmuir monolayers.

Findings

Identification of the origin of fluid-fluid transitions

Insights into factors influencing tilt direction

Understanding of molecular tilt order mechanisms

Abstract

We study coarse grained, continuum models for Langmuir monolayers by self consistent field theory and by Monte Carlo simulations. Amphiphilic molecules are represented by stiff chains of monomers with one end grafted to a planar surface. In particular, we discuss the origin of successive fluid-fluid transitions, the possible origin of tilt order and the factors which determine the direction of tilt.