Universal shape characteristics for the mesoscopic star-shaped polymer via dissipative particle dynamics simulations

Abstract

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 bad, good and $\theta$-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 $\theta$-solvent regime.

References in corpus (5)

• Perspective: Dissipative Particle Dynamics
• Copolymer Networks and Stars: Scaling Exponents
• Multifractality of Brownian motion near absorbing polymers
• Shapes of macromolecules in good solvents: field theoretical renormalization group approach
• Universal shape characteristics for the mesoscopic polymer chain via dissipative particle dynamics

Cited by in corpus (2)

• Universal size and shape ratios for arms in star-branched polymers: theory and mesoscopic simulations
• Universal properties of branched copolymers in dilute solutions