Authors
|
Schwarz, S. ; Jaeger, W. ; Bratskaya, S. ; Bohrisch, J. ; Schimmel, T. ; Mende, M. ; Oelmann, M. ; Boyko, V.
|
Title
|
Formation of polyelectrolyte complexes in a polycarboxybetaine/weak polyanion system
|
Date
|
14.03.2006
|
Number
|
13347
|
Abstract
|
Polycarboxybetaines polymers containing a substituted ammonium moiety and a carboxylate group in every monomer units show in aqueous solutions a pH-dependent intramolecular charge interactions. Here, we show that despite of this intramolecular charge effect mixing positively charge polycarboxybetaine and oppositely charged poly(maleic acid-co-propene) can yield polyelectrolyte complexes (PEC). Dynamic light scattering and viscometry has proved formation of highly swollen PEC nanoparticles with sizes in the range of 58 nm at n-/n+ ratio from 0.6 to 1.0. Significant difference in charge densities and molecular dimensions in the solution were suggested as the main reasons for deviation from 1:1 PEC stoichiometry.
|
Publisher
|
Colloids and Surfaces A: Physicochemical and Engineering Aspects
|
Wikidata
|
|
Citation
|
Colloids and Surfaces A: Physicochemical and Engineering Aspects 276 (2006) 65-71
|
DOI
|
https://doi.org/10.1016/j.colsurfa.2005.10.017
|
Tags
|
|