Charge distribution on annealed polyelectrolytes
نویسندگان
چکیده
منابع مشابه
Equilibrium charge distribution on annealed polyelectrolytes.
Monte Carlo simulations are used to study the non-uniform equilibrium charge distribution along a single annealed polyelectrolyte chain under theta solvent conditions and with added salt. Within a range of the order of the Debye length charge accumulates at chain ends while a slight charge depletion appears in the central part of the chain. The simulation results are compared with theoretical p...
متن کامل2 3 M ar 1 99 9 Charge Distribution on Annealed Polyelectrolytes .
We investigate the equilibrium charge distribution along a single annealed poly-electrolyte chain under different conditions. The coupling between the conformation of the chain and the local charge distribution is described for various solvent qualities and salt concentration. In salt free solution, we find a slight charge depletion in the central part of the chain: the charges accumulate at th...
متن کاملOn the effective charge of hydrophobic polyelectrolytes.
In this paper, we analyze the behavior of hydrophobic polyelectrolytes. It has been proposed that this system adopts a pearl necklace structure reminiscent of the Rayleigh instability of a charged droplet. Using a Poisson-Boltzmann approach, we calculate the counterion distribution around a given pearl, assuming the latter to be penetrable for the counterions. This allows us to calculate the ef...
متن کاملCharge Interactions in Cylindrical Polyelectrolytes
The Debye-Huckel equation is solved for the electrostatic interaction of point charges on the surface of a dielectric cylinder immersed in salt water. Numerical results are given for the potential as a function of axial separation for charges on the same side and on opposite sides of the cylinder, and for two values of the Debye screening length: infinity and unity, in units of the cylinder rad...
متن کاملCharge Regulation of Interacting Weak Polyelectrolytes
We introduce a generalized nonuniform mean-field formalism to describe the dissociation of weak rodlike polyelectrolytes (PEs). Our approach allows for two-sublattice symmetry breaking which in titration curves is associated with a plateau for intermediate dissociation degrees. We first test our method in the case of a single weak PE by comparison with exact enumeration studies and show that it...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal E
سال: 2000
ISSN: 1292-8941
DOI: 10.1007/pl00014591