Author: Sukant K. TripathyPublisher:
ISBN:
Category : Polyelectrolytes
Languages : en
Pages : 378
Book Description
Handbook of Polyelectrolytes and Their Applications: Applications of polyelectrolytes and theoretical models
Author: Sukant K. TripathyPublisher:
ISBN:
Category : Polyelectrolytes
Languages : en
Pages : 378
Book Description
Polyelectrolytes
Author: Visakh P. M.Publisher: Springer
ISBN: 3319016806
Category : Technology & Engineering
Languages : en
Pages : 388
Book Description
This book offers a valuable reference source to graduate and post graduate students, engineering students, research scholars polymer engineers from industry. The book provides the reader with current developments of theoretical models describing the thermodynamics polyelectrolytes as well as experimental findings. A particular emphasis is put on the rheological description of polyelectrolyte solutions and hydrogels.
Structure and Dynamics of Polyelectrolytes
Author: Brett David ErmiDynamics and Structure of Polyelectrolyte Complexes
Author: Hamidreza Shojaei-MahibPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Interaction of charged macromolecules among themselves and with charged interfaces in salty aqueous medium is a common phenomenon prevalent in biology and synthetic systems. We have addressed several inter-related issues in this general context. First we present a theory of adsorption of polyelectrolytes on the interior and exterior surfaces of a charged spherical vesicle. We derive the critical adsorption condition and the density profile of the polymer in terms of various characteristics of the polymer, vesicle, and the solution, such as the length and charge density of polymer, the radius and charge of the vesicle, the salt concentration of the solution, and the dielectric constant of the solvent. We have used the Wentzel-Kramers-Brillouin (WKB) method to solve the equation for the probability distribution function of the chain. For the polyelectrolyte inside the vesicle, the competition between the loss of conformational entropy and the attractive electrostatic energy between the vesicle and the polyelectrolyte, results in two different encapsulated states. By considering the adsorption from outside, we calculate the entropic and the energetic contributions to the free energy for the polymer being adsorbed in the interior and exterior states and the free energy penalty for the polyelectrolyte being expelled from the vesicle. The kinetics of the polyelectrolyte complexation have been studied using the Smoluchowski equation. We derive the mean distance between two oppositely charged polyelectrolytes and the reaction rate for the complexation in terms of the salt concentration and polyelectrolyte characteristics. We also calculate the half-time for the complexation process at different salt concentrations and initial distances.\\ For a vesicle, we have derived the free energy landscape of translocation through the pore by accounting for the energy penalty of bending and stretching the vesicle from due to deformation by pore. Using the Fokker-Planck formalism, we have calculated the average translocation time corresponding to the various free energy landscapes representing different parameter sets. We also discuss the dependencies of the average translocation time on the strength of the external force, vesicle size, bending and stretching moduli of the vesicle, and the radius and length of the pore. Finally, we formulate a theory of the effects of long-range interactions on surface tension and spontaneous curvature of proteinaceous shells based on the general Deryaguin-Landau-Verwey-Overbeek (DLVO) theory. we have derived the renormalized spontaneous curvature as a function of capsid's inner and outer charge density and solution properties.
Physical Chemistry of Polyelectrolytes
Author: Tsetska RadevaPublisher: CRC Press
ISBN: 9780824704636
Category : Science
Languages : en
Pages : 910
Book Description
An examination of the fundamental nature of polyelectrolytes, static and dynamic properties of salt-free and salt-added solutions, and interactions with other charged and neutral species at interfaces with applications to industry and medicine. It applies the Metropolis Monte Carlo simulation to calculate counterion distributions, electric potentials, and fluctuation of counterion polarization for model DNA fragments.
The Structure and Dynamics of Polyelectrolyte Combs
Author: Aristeidis PapagiannopoulosPublisher:
ISBN:
Category :
Languages : en
Pages : 440
Book Description
Physical Chemistry of Polyelectrolytes
Author: Tsetska RadevaPublisher: CRC Press
ISBN: 1482270684
Category : Science
Languages : en
Pages : 936
Book Description
An examination of the fundamental nature of polyelectrolytes, static and dynamic properties of salt-free and salt-added solutions, and interactions with other charged and neutral species at interfaces with applications to industry and medicine. It applies the Metropolis Monte Carlo simulation to calculate counterion distributions, electric potentia
Author: Emanuela Di Cola
Author: Shih Ping Chen
Author: Chee O. Wong