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Multidensity integral-equation theory for short diblock hard-sphere-sticky-hard-sphere chains

, : Multidensity integral-equation theory for short diblock hard-sphere-sticky-hard-sphere chains. Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics 81(4 Pt 1): 041809-041809

The multidensity Ornstein-Zernike integral equation theory is applied to study a simple model of hard sphere/sticky hard sphere diblock chains. The multidensity integral equation formalism has been successfully used to model the equilibrium structure and thermodynamic properties of homonuclear chains and shorter dimer fluids; to our knowledge it has not been applied to model diblock chains. In this work, a diblock chain fluids is represented by an m-component equal molar mixture of hard spheres with species 1,2,...,mh and sticky hard spheres with species mh+1,mh+2,...,m. Each spherical particle has two attractive sites A and B except species 1 and m, which have only one site per particle. In the limit of complete association, this mixture yields a system of monodisperse diblock chains. A general solution of this model is obtained in the Percus-Yevick, Polymer Percus-Yevick and ideal chain approximations. Both structural and thermodynamic properties of this model are investigated. From this study, a microphase separation is predicted for relatively short diblock symmetric and asymmetric chains. This microphase separation is enhanced at lower temperature and higher density. When chain length increases, the phase transition changes from a microphase level to a macrophase level. The size of microdomain structure is found to be dependent on total chain length, relative ratio of block lengths, temperature, and density.


PMID: 20481746

DOI: 10.1103/PhysRevE.81.041809

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Wolf, L., 2006: Triage and early recognition of significant head injury in the geriatric trauma patient. Journal of Emergency Nursing: Jen 32(4): 357-359

Uchino, T.; Nei, D.; H.W.nZhong; Sorour, H., 2004: Development of a mathematical model for dependence of respiration rate of fresh produce on temperature and time. In order to simulate the respiration rate of fresh produce during transport, retailing and storage, a respiration model for time and temperature dependence was developed. First, a model for time, based on the enzyme kinetics, was derived at a cons...

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