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[Studies on the coil-globule transition by the Monte-Carlo method]
Molekuliarnaia Biologiia
|March 1, 1981
Summary
This study reveals how polymer chains transition between coil and globule states. Chain compactness is driven by interactions between nearby monomers along the polymer.
Area of Science:
- Polymer Physics
- Computational Chemistry
- Statistical Mechanics
Context:
- Investigating polymer chain dynamics and conformational changes.
- Exploring coil-globule and globule-coil transitions in self-avoiding chains.
- Utilizing dynamical Monte Carlo simulations for kinetic modeling.
Purpose:
- To present results from a dynamical Monte Carlo study on polymer transitions.
- To analyze the behavior of self-avoiding chains with lengths N = 32 and 64.
- To understand the mechanisms driving the coil-globule and globule-coil transitions.
Summary:
- Simulations modeled polymer relaxation via abrupt changes in monomer interactions.
- The kinetic model incorporated two- and three-bond flips.
- Time evolution of radius of gyration and intramolecular contacts were tracked.
- Established that monomer contacts along the chain drive the transition to a compact state.
- Results were compared against analytical theory predictions.
Impact:
- Provides insights into polymer self-assembly and conformational dynamics.
- Validates or refines existing theoretical models of polymer behavior.
- Contributes to understanding complex systems in materials science and biophysics.