Bidisperse ring polymers: topological glass to stacking

2023/05/18 by Projesh Kumar Roy, Roy, Projesh Kumar, Pinaki Chaudhuri +3 · 2 citations
Engineering · Materials Science · #Adhesion, Friction, and Surface Interactions #FOS: Physical sciences #Material Dynamics and Properties #Slime Mold and Myxomycetes Research #Soft Condensed Matter (cond-mat.soft)

paper · pdf · doi:10.48550/arxiv.2305.10812

openalex publication_date 2023/05/18 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Via large-scale molecular dynamics simulations, we observe the melting of a topological glass of stiff ring polymers by incorporating flexible ring polymers, along an isobaric path. As more flexible ring polymers are introduced, cluster glass-like structures emerge in the stiffer ring polymers with reduced orthogonal threading. This eventually evolves to a stacked columnar structure at an increased fraction of flexible ring polymers. Depletion interactions between the stiff and flexible rings drive the stacking, contingent on the disparity in flexibility in the ring polymer mixture.

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