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Updated: Jun 11, 2025

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
Published on: September 26, 2016
Migration and Separation of Polymers in Nonuniform Active Baths
Pietro Luigi Muzzeddu1, Andrea Gambassi1,2, Jens-Uwe Sommer3,4
1<a href="https://ror.org/004fze387">SISSA</a> - International School for Advanced Studies, via Bonomea 265, 34136 Trieste, Italy.
We show that active baths can control polymerlike structures. Nonuniform active baths can efficiently separate polymers by length or connectivity.
Area of Science:
- Soft Matter Physics
- Polymer Science
- Statistical Mechanics
Background:
- Polymerlike structures are common in nature and materials.
- Crowded environments and active agents cause complex fluctuations.
Purpose of the Study:
- Investigate an ideal Rouse chain in a nonhomogeneous active bath.
- Understand how active baths influence polymer configuration and migration.
Main Methods:
- Coarse-graining procedure to derive effective evolution equations.
- Analysis of polymer center-of-mass dynamics.
Main Results:
- The polymer chain migrates and localizes based on bath activity gradients.
- Nonuniform activity leads to preferential localization in high or low activity regions.
Conclusions:
- Active baths offer a novel mechanism for controlling polymer behavior.
- Nonhomogeneous active baths can efficiently separate polymers of varying lengths and connectivity.
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