The present paper deals with the correlation between intramolecular and intermolecular interactions of polycarboxybetaines. degree coupling opposite charges within polycarboxybetaine molecules was varied by spacers different length substitution additional alkyl chains at quaternary nitrogen atom. In order to check polycarboxybetaines, SANS measurements were carried out aqueous polycarboxybetain...

Responsive polyelectrolyte multilayers Karine Glinel a,∗, Christophe Déjugnat b,1, Michelle Prevot b, Björn Schöler a, Monika Schönhoff c, Regine v. Klitzing d a Laboratoire Polymères, Biopolymères, Membranes, UMR 6522 CNRS, Université de Rouen, F-76821 Mont-Saint-Aignan, France b Max Planck Institute of Colloids and Interfaces, Am Mühlenberg, D-14424 Potsdam, Germany c Institute of Physical Ch...

Closure systems for personnel protection applications, such as protective clothing or respirator face seals, should provide effective permeation barrier to toxic gases. Currently available mechanical closure systems based on the hook and loop types (example, Velcro) do not provide adequate barrier to gas permeation. To achieve hermetic sealing, we propose a nonmechanical, nanoscopic molecular c...

Molecular dynamics simulations of polyelectrolyte multilayering on a charged spherical particle revealed that the sequential adsorption of oppositely charged flexible polyelectrolytes proceeds with surface charge reversal and highlighted electrostatic interactions as the major driving force of layer deposition. Far from being completely immobilized, multilayers feature a constant surge of chain...

This paper presents novel methods to produce arrays of lipid bilayers and liposomes on patterned polyelectrolyte multilayers. We created the arrays by exposing patterns of poly(dimethyldiallylammonium chloride) (PDAC), polyethylene glycol (m-dPEG) acid, and poly(allylamine hydrochloride) (PAH) on polyelectrolyte multilayers (PEMs) to liposomes of various compositions. The resulting interfaces w...

Polyelectrolytes are polymers carrying either positively or negatively charged ionizable groups. The properties of these polymers in solutions and at charged surfaces depend on the fraction of dissociated ionic groups, solvent quality for polymer backbone, solution dielectric constant, salt concentration, and polymer–substrate interactions. In this review, we summarize the current development o...

Self-healing is the ability of a material to repair mechanical damage. The lifetime of a coating or film might be lengthened with this capacity. Water enabled self-healing of polyelectrolyte multilayers has been reported, using systems that grow via the interdiffusion of polyelectrolyte chains. Due to high mobility of the polyelectrolyte chains within the assembly, it is possible for lateral di...