Preparation of stable electroneutral nanoparticles of sodium dodecyl sulfate and branched poly(ethylenimine) in the presence of pluronic F108 copolymer

Katalin Pojják, R. Mészáros

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Mixing of polyelectrolyte solutions with solutions of oppositely charged surfactants usually leads to phase separation in a certain concentration range. However, since the charge-neutralized polyelectrolyte/surfactant nanoparticles might be utilized as versatile nanocarriers of different substances, it would be desirable to prevent their aggregation for some applications. As it was revealed in earlier investigations, the complete suppression of precipitation may be achieved only in mixtures of ionic surfactants and appropriate copolymer polyelectrolytes with nonionic and ionic blocks. In this work, we present a method that could prevent phase separation in mixtures of homopolyelectrolytes and oppositely charged surfactants. Specifically, it is shown that nonaggregating electroneutral nanocomplexes of branched poly(ethylenimine) (PEI) and sodium dodecyl sulfate (SDS) can be prepared in the presence of the amphiphilic triblock copolymer Pluronic F108, provided that an adequate mixing protocol is used for preparation of the PEI/SDS/F108 mixtures.

Original languageEnglish
Pages (from-to)14797-14806
Number of pages10
JournalLangmuir
Volume27
Issue number24
DOIs
Publication statusPublished - Dec 20 2011

Fingerprint

Poloxamer
Sodium dodecyl sulfate
sodium sulfates
Surface-Active Agents
Sodium Dodecyl Sulfate
copolymers
Surface active agents
Copolymers
Polyelectrolytes
surfactants
Nanoparticles
nanoparticles
Polyetherimides
preparation
Phase separation
Block copolymers
Agglomeration
retarding
aziridine

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Preparation of stable electroneutral nanoparticles of sodium dodecyl sulfate and branched poly(ethylenimine) in the presence of pluronic F108 copolymer. / Pojják, Katalin; Mészáros, R.

In: Langmuir, Vol. 27, No. 24, 20.12.2011, p. 14797-14806.

Research output: Contribution to journalArticle

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