AI Article Synopsis
- - We conducted computer simulations on two types of linked ring polymers: mechanically linked poly[2]catenanes (PCs) and chemically bonded rings (BRs) under steady shear conditions.
- - The BRs showed a new motion called gradient tumbling, while the PCs exhibited a different motion known as slip tumbling, indicating distinct behaviors due to their structures.
- - Our study highlights how the shapes and connections of these polymers affect their movement in fluid environments, revealing a complex relationship between polymer topology and hydrodynamics.
Article Abstract
We perform computer simulations of mechanically linked (poly[2]catenanes, PC) and chemically bonded (bonded rings, BR) pairs of self-avoiding ring polymers in steady shear. We find that BRs develop a novel motif, termed gradient tumbling, rotating around the gradient axis. For the PCs the rings are stretched and display another new pattern, termed slip tumbling. The dynamics of BRs is continuous and oscillatory, whereas that of PCs is intermittent between slip-tumbling attempts. Our findings demonstrate the interplay between topology and hydrodynamics in dilute solutions of connected polymers.
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| http://dx.doi.org/10.1103/PhysRevLett.132.148101 | DOI Listing |
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