2017/12/24 by O. Kalyuzhnyi, O Kalyuzhnyi, J. M. Ilnytskyi +5 · 9 citations
Chemistry · Materials Science · Physics and Astronomy · #Advanced Physical and Chemical Molecular Interactions #Block Copolymer Self-Assembly #Dissipative particle dynamics #Dissipative system #Gyration #Homogeneous #Material Dynamics and Properties #Mesoscopic physics #Molecular dynamics #Polymer #Radius of gyration #cond-mat.soft
paper · pdf · doi:10.1088/1361-648x/aabc16
published in Journal of Physics Condensed Matter 30(21), 215101 (IOP Publishing)
arxiv created 2017/12/24 · openalex created_date 2018/01/05 · openalex publication_date 2018/04/06 · arxiv updated 2020/03/24 · openalex updated_date 2026/08/05
In this paper we study the shape characteristics of star-like polymers in various solvent quality using a mesoscopic level of modeling. The dissipative particle dynamics simulations are performed for the homogeneous and four different heterogeneous star polymers with the same molecular weight. We analyse the gyration radius and asphericity at the poor, good and θ-solvent regimes. Detailed explanation based on interplay between enthalpic and entropic contributions to the free energy and analyses on of the asphericity of individual branches are provided to explain the increase of the apsphericity in θ-solvent regime.