Self-assembly in mixtures of poly(ethylene oxide)-graft-poly(ethyleneimine) and alkyl sulfates

Tatiana K Bronich, Timothy Cherry, Serguei V. Vinogradov, Adi Eisenberg, Victor A. Kabanov, Alexander V. Kabanov

Research output: Contribution to journalArticle

119 Citations (Scopus)

Abstract

The complexes formed between the cationic graft copolymer of poly(ethylene oxide)and poly(ethyleneimine) (PEO-g-PEI) and alkyl sulfate surfactants were studied using potentiometric titration, fluorescence spectroscopy, ζ-potential measurement, dynamic light scattering, and electron microscopy. In contrast to the complexes of PEI homopolymer, which phase separate, the PEOg-PEI complexes are water-soluble over the whole range of compositions of the mixture, including the electroneutral stoichiometric complexes. These species apparently represent micelle-like aggregates with a hydrophobic core from the surfactant-neutralized polyions and a hydrophilic corona from the ethylene oxide chains. This is a very different morphology compared to the previously described complexes of poly(ethylene oxide)-b-polymethacrylate anions with cationic surfactants, which formed vesicles. The difference in the morphology is attributed to the difference in the copolymer architecture (branched vs linear, graft vs block copolymer, lengths of chain segments). The unique self-assembly behavior, the simplicity of the preparation, and the wide variety of available surfactant components make these systems promising in addressing various theoretical and practical problems, particularly, in pharmaceutics.

Original languageEnglish (US)
Pages (from-to)6101-6106
Number of pages6
JournalLangmuir
Volume14
Issue number21
StatePublished - Oct 13 1998

Fingerprint

Polyetherimides
ethylene oxide
Polyethylene oxides
Surface-Active Agents
Grafts
Self assembly
Sulfates
self assembly
sulfates
Surface active agents
surfactants
Ethylene Oxide
copolymers
Cationic surfactants
Graft copolymers
Fluorescence spectroscopy
Micelles
Dynamic light scattering
Homopolymerization
Titration

ASJC Scopus subject areas

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

Cite this

Bronich, T. K., Cherry, T., Vinogradov, S. V., Eisenberg, A., Kabanov, V. A., & Kabanov, A. V. (1998). Self-assembly in mixtures of poly(ethylene oxide)-graft-poly(ethyleneimine) and alkyl sulfates. Langmuir, 14(21), 6101-6106.

Self-assembly in mixtures of poly(ethylene oxide)-graft-poly(ethyleneimine) and alkyl sulfates. / Bronich, Tatiana K; Cherry, Timothy; Vinogradov, Serguei V.; Eisenberg, Adi; Kabanov, Victor A.; Kabanov, Alexander V.

In: Langmuir, Vol. 14, No. 21, 13.10.1998, p. 6101-6106.

Research output: Contribution to journalArticle

Bronich, TK, Cherry, T, Vinogradov, SV, Eisenberg, A, Kabanov, VA & Kabanov, AV 1998, 'Self-assembly in mixtures of poly(ethylene oxide)-graft-poly(ethyleneimine) and alkyl sulfates', Langmuir, vol. 14, no. 21, pp. 6101-6106.
Bronich TK, Cherry T, Vinogradov SV, Eisenberg A, Kabanov VA, Kabanov AV. Self-assembly in mixtures of poly(ethylene oxide)-graft-poly(ethyleneimine) and alkyl sulfates. Langmuir. 1998 Oct 13;14(21):6101-6106.
Bronich, Tatiana K ; Cherry, Timothy ; Vinogradov, Serguei V. ; Eisenberg, Adi ; Kabanov, Victor A. ; Kabanov, Alexander V. / Self-assembly in mixtures of poly(ethylene oxide)-graft-poly(ethyleneimine) and alkyl sulfates. In: Langmuir. 1998 ; Vol. 14, No. 21. pp. 6101-6106.
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