A Molecular Theory for Liquid Crystal Elastomers: Nematic Ordering, Shape Deformation, and Mechanical Response

L Liu, R Wang - Macromolecules, 2024 - ACS Publications
Modeling liquid crystal elastomers (LCEs) at the molecular level is crucial for the predictable
design of energy-conversion-and stimuli-responsive materials. Here, we develop a self …

Modeling the polydomain-monodomain transition of liquid crystal elastomers

JK Whitmer, TF Roberts, R Shekhar, NL Abbott… - Physical Review E …, 2013 - APS
We study the mechanism of the polydomain-monodomain transition in liquid crystalline
elastomers at the molecular scale. A coarse-grained model is proposed in which mesogens …

Lattice statistical models for the nematic transitions in liquid-crystalline systems

ES Nascimento, AP Vieira, SR Salinas - Brazilian Journal of Physics, 2016 - Springer
We investigate the connections between some simple Maier-Saupe lattice models, with a
discrete choice of orientations of the microscopic directors, and a recent proposal of a two …

Field-induced uniaxial and biaxial nematic phases in the Maier–Saupe–Zwanzig (MSZ) lattice model

A Petri, SR Salinas - Liquid Crystals, 2018 - Taylor & Francis
We report detailed statistical mechanics calculations to analyse the field-temperature phase
diagram of a fully connected Maier–Saupe–Zwanzig (MSZ) lattice model for the nematic …

Hard-needle elastomer in one spatial dimension

DB Liarte, A Petri, SR Salinas - Brazilian Journal of Physics, 2023 - Springer
We perform exact statistical mechanics calculations for a system of elongated objects (hard
needles) that are restricted to translate along a line and rotate within a plane, and that …

Elementary lattice models for the nematic transitions in liquid-crystalline systems

SR Salinas, ES Nascimento - Molecular Crystals and Liquid …, 2017 - Taylor & Francis
ABSTRACT The Maier-Saupe theory of the nematic phase transitions, with the requirement
that the molecular directors are restricted to the Cartesian axes, can be formulated as a fully …

Enhancement of nematic order and global phase diagram of a lattice model for coupled nematic systems

DB Liarte, SR Salinas - Brazilian Journal of Physics, 2012 - Springer
We use an infinite-range Maier–Saupe model, with two sets of local quadrupolar variables
and restricted orientations, to investigate the global phase diagram of a coupled system of …

Modulated phases in a three-dimensional Maier-Saupe model with competing interactions

PF Bienzobaz, N Xu, AW Sandvik - Physical Review E, 2017 - APS
This work is dedicated to the study of the discrete version of the Maier-Saupe model in the
presence of competing interactions. The competition between interactions favoring different …

Uniaxial and biaxial structures in the elastic Maier-Saupe model

A Petri, DB Liarte, SR Salinas - Physical Review E, 2018 - APS
We perform statistical mechanics calculations to analyze the global phase diagram of a fully
connected version of a Maier-Saupe-Zwanzig lattice model with the inclusion of couplings to …

Tricritical behavior of soft nematic elastomers

DB Liarte - Physical Review E, 2013 - APS
We propose a lattice statistical model to investigate the phase diagrams and the soft
responses of nematic liquid-crystal elastomers. Using suitably scaled infinite-range …