Phase Diagram of Flexible Polymers with Quenched Disordered Charged Monomers

  title={Phase Diagram of Flexible Polymers with Quenched Disordered Charged Monomers},
  author={B. B. Rodrigues and J. C. S. Rocha and B. V. Costa},
  journal={SSRN Electronic Journal},
Recent advances inGeneralizedEnsemble simulations andmicrocanonical analysis allowed the investigation of structural transitions in polymer models over a broad range of local bending and torsion strengths. It is reasonable to argue that electrostatic interactions play a significant role in stabilizing and mediating structural transitions in polymers. We propose a bead-spring polymer model with randomly distributed charged monomers interacting via a screened Coulomb potential. By combining the… 

Figures from this paper


Pushing the Limits of EPD Zeros Method
The use of partition function zeros in the study of phase transition is growing in the last decade mainly due to improved numerical methods as well as novel formulations and analysis. In this paper
When Do Polyelectrolytes Entangle?
Entanglements in polyelectrolyte solutions are a controversial issue in polymer science. Experimental studies during the last 20 years have raised doubts about the applicability of the concept of e...
Comparison of Conformational Phase Behavior for Flexible and Semiflexible Polymers
It is observed that the transition behavior into the compact phases changes qualitatively with increasing bending stiffness, and the first-order liquid-solid transition characteristic for flexible polymers ceases to exist once bending effects dominate over attractive monomer-monomer interactions.
Polymer in a pore: Effect of confinement on the free energy barrier
This brief review discusses methods to locate and characterize first order phase transitions, paying particular attention to finite size effects. In the first part, the order parameter probability
On the first-order collapse transition of a three-dimensional, flexible homopolymer chain model
We present simulation results for the phase behavior of flexible lattice polymer chains using the Wang-Landau sampling idea. These chains display a two-stage collapse through a coil-globule
Application of the renormalization group to phase transitions in disordered systems
The critical behavior of spin systems with quenched disorder is studied by renormalization-group methods. For the randomly dilute $m$-vector model, the $n=0$ limit is used to construct a
Renormalization group theory: Its basis and formulation in statistical physics
The nature and origins of renormalization group ideas in statistical physics and condensed matter theory are recounted informally, emphasizing those features of prime importance in these areas of