Response of block copolyelectrolyte complexes to addition of ionic surfactants

Daria Kaczmarek, Jakob S. Diget, Bo Nyström, Gergő Gyulai, R. Mészáros, T. Gilányi, Imre Varga

Research output: Article

8 Citations (Scopus)

Abstract

Polyelectrolyte complex formation of a long chain poly(sodium styrene sulfonate) (NaPSS) with short chain poly(vinylbenzyltrimethylammonium chloride) homopolymer (pVBTA) and block copolymers (PEG-b-pVBTA) was investigated. The effect of the PEG chain and the pVBTA block length was studied on the complex formation. Then the exchange of the complex bound pVBTA for cetyltrimethylammonium bromide (CTAB) was studied using complexes that contained excess of pVBTA segments. First we characterized the effect of ionic strength on the complex stability. Then we studied how the addition of CTAB affects the stability of the complexes with increasing ionic strength. We found that three ionic strength ranges could be distinguished. In the lowest ionic strength range, the formation of stable mixed complexes could be observed. In the intermediate ionic strength range the pVBTA polymer was mostly substituted by CTAB, leading to the aggregation and precipitation of the complexes under the investigated conditions. Finally, at the highest ionic strength the formation of equilibrium NaPSS/CTAB complexes could be hypothesized.

Original languageEnglish
Pages (from-to)290-296
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume532
DOIs
Publication statusPublished - nov. 5 2017

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Ionic strength
Homopolymerization
Surface-Active Agents
Surface active agents
surfactants
chlorides
bromides
Polyethylene glycols
Styrene
Polyelectrolytes
Block copolymers
sulfonates
poly(vinylbenzyltrimethylammonium chloride)
block copolymers
styrenes
Polymers
Agglomeration
Sodium
sodium
cetrimonium

ASJC Scopus subject areas

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Response of block copolyelectrolyte complexes to addition of ionic surfactants. / Kaczmarek, Daria; Diget, Jakob S.; Nyström, Bo; Gyulai, Gergő; Mészáros, R.; Gilányi, T.; Varga, Imre.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 532, 05.11.2017, p. 290-296.

Research output: Article

Kaczmarek, Daria ; Diget, Jakob S. ; Nyström, Bo ; Gyulai, Gergő ; Mészáros, R. ; Gilányi, T. ; Varga, Imre. / Response of block copolyelectrolyte complexes to addition of ionic surfactants. In: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2017 ; Vol. 532. pp. 290-296.
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