Abstract
This work shows how glassy behavior emerges from the active, directed polymer dynamics that is triggered by the non-equilibrium phase separation.
Highlights
Properties of ring polymer systems, albeit having been the subject of longstanding theoretical and experimental research, have not yet been understood in their entirety
We further examine the connection between the glass formation and the nonequilibrium phase separation and we find that both appear to be initiated by the contrasting dynamics of ring segments
We have considered in detail melts of unknotted and nonconcatenated block copolymer rings driven out of equilibrium by different thermostats applied to the two different blocks
Summary
Properties of ring polymer systems, albeit having been the subject of longstanding theoretical and experimental research, have not yet been understood in their entirety. While the biological aspect is certainly intriguing, here we are interested in the physical properties and mechanisms behind the formation of this state of matter Many properties of such nonequilibrium, activity-driven glassy states in ring polymer melts remain elusive, such as the relation between the glass transition and the active-passive phase separation. Deeply threaded state, the hot segments tend to phase segregate more, which reduces energy dissipation and increases their effective temperature, leading to further tightening of the constraints At this steady state, the constraints cause the dynamics of each ring to lose the drift element.
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