Conformation properties of one isolated polyelectrolyte chain in D dimensions

Unscreened polyelectrolyte chain in d dimensions : a Monte Carlo simulation

Insight into the electrical properties and chain conformation of spherical polyelectrolyte brushes by dielectric spectroscopy.

We report here a dielectric study on three kinds of anionic spherical polyelectrolyte brush (SPBs, consisting of a polystyrene (PS) core and three different poly (acrylic acid) chains grafted onto the core) suspensions over a frequency ranging from 40 Hz to 110 MHz. The relaxation behavior of the SPB suspensions shows significant changes in the brush-layer properties when the mass fraction of S...

Polyelectrolyte chain dimensions and concentration fluctuations near phase boundaries

We have measured the temperature ~T! dependence of the correlation length ~j! for concentration fluctuations in aqueous solutions of sodium–poly~styrene sulfonate! with a fixed level of added barium chloride salt. Apparent critical behavior is observed upon lowering the temperature to precipitation phase boundaries that complements our earlier work on salt-dependent behavior. We interpret exper...

Conformation and order in polyelectrolyte solutions

2014 The scattering factor of polyelectrolyte solutions in the absence of added salt presents a peak at a scattering vector qm which varies like C 1/2. This has been sometimes interpreted in terms of a local orientational order of cylinders. The variation holds however through many concentration regimes, and other explanations in term of correlation holes have been proposed. We evaluate the dif...

Conformation Change, Tension Propagation and Drift-Diffusion Properties of Polyelectrolyte in Nanopore Translocation

Using Langevin dynamics simulations, conformational, mechanical and dynamical properties of charged polymers threading through a nanopore are investigated. The shape descriptors display different variation behaviors for the cisand trans-side sub-chains, which reflects a strong cis-trans dynamical asymmetry, especially when the driving field is strong. The calculation of bond stretching shows ho...