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Two Types of Block Copolymer Micelles with Ion-Containing Cores
Date
2010-03-02
Author
Erel Göktepe, İrem
Sukhishvili, Svetlana
PATYUKOVA, Elena
Potemkin, Igor
KRAMARENKO, Elena
Metadata
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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We report a combined experimental and theoretical study of micellization of block copolymer with hydrophilic nonionic corona-forming blocks and weak polyelectrolyte (wPE) core-forming blocks with pH-triggered solubility in aqueous solutions. We demonstrate that in addition to micelles with neutral cores, there exist two other types of micelles with PE- or ionomer-like cores, in which monovalent counterions are released or condensed on core wPE block, respectively. The transition between the two types of micelles occurred upon changes in ionization of the PE core block and resulted in nonmonotonous changes of aggregation number as a function of pH. Such micelles with stimulus responsive cores represent promising nanocarriers for controlled delivery applications.
Subject Keywords
Amphiphiles
,
Diblock copolymers
,
Micelles
,
Polyelectrolytes
,
Self-assembly
URI
https://hdl.handle.net/11511/33032
Journal
MACROMOLECULAR RAPID COMMUNICATIONS
DOI
https://doi.org/10.1002/marc.200900659
Collections
Department of Chemistry, Article
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BibTeX
İ. Erel Göktepe, S. Sukhishvili, E. PATYUKOVA, I. Potemkin, and E. KRAMARENKO, “Two Types of Block Copolymer Micelles with Ion-Containing Cores,”
MACROMOLECULAR RAPID COMMUNICATIONS
, pp. 490–495, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/33032.