Effect of chain-penetration on ring shape for mixtures of rings and linear polymers

Coarse-grained molecular dynamics simulations of Kremer–Grest-type bead-spring models were performed on mixtures ring and linear polymers to investigate the effects chain-penetration polymer shape. We found that number chains penetrating through a increased with size, while penetration was inhibited for smaller rings composed less than 80 beads. From eigenvalue analyses gyration tensor each ring, shape characterized by asphericity prolateness. The (nP) determined from Gauss linking numbers all chain pairs. radius dependent nP value, suggesting expanded upon penetration. obtained results provide important insights in ring-linear blends theoretical research as well experiments especially rheological measurements.