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Published on: October 5, 2018
Integral equation and thermodynamic perturbation theory for a two-dimensional model of chain-forming fluid
1University of Ljubljana, Department of Chemistry and Chemical Technology, Chair of Physical Chemistry, Večna pot 113, SI-1000 Ljubljana, Slovenia.
Abstract:
In this paper we applied analytical theories for the two dimensional chain-forming fluid. Wertheims thermodynamic perturbation theory (TPT) and integral equation theory (IET) for associative liquids were used to study thermodynamical and structural properties of the chain-forming model. The model has polymerizing points at arbitrary position from center of the particles. Calculated analytical results were tested against corresponding results obtained by Monte Carlo computer simulations to check the accuracy of the theories. The theories are accurate for the different positions of patches of the model at all values of the temperature and density studied. The IET's pair correlation functions of the model agree well with computer simulations. Both TPT and IET are in good agreement with the Monte Carlo values of the energy, chemical potential and ratios of free, once and twice bonded particles.
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