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Updated: Jun 19, 2026

Synthesis of Cyclic Polymers and Characterization of Their Diffusive Motion in the Melt State at the Single Molecule Level
Published on: September 26, 2016
Polymer translocation out of confined environments
Kaifu Luo1, Ralf Metzler, Tapio Ala-Nissila
1Physics Department, Technical University of Munich, D-85748 Garching, Germany. luokaifu@gmail.com
Abstract:
We consider the dynamics of polymer translocation out of confined environments. Analytic scaling arguments lead to the prediction that the translocation time scales like tau approximately N(beta+nu(2D))R(1+(1-nu(2D))/nu) for translocation out of a planar confinement between two walls with separation R into a three-dimensional (3D) environment, and tau approximately N(beta+1)R for translocation out of two strips with separation R into a two-dimensional (2D) environment. Here, N is the chain length, nu and nu(2D) are the Flory exponents in 3D and 2D, and beta is the scaling exponent of translocation velocity with N , whose value for the present choice of parameters is beta equals approximately 0.8 based on Langevin dynamics simulations. These scaling exponents improve on earlier predictions.
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