Journal of Colloid and Interface Science 546 (2019) 371–380 Contents lists available at ScienceDirect Journal of Colloid and Interface Science journal homepage: www.elsevier.com/locate/jcis Interactions of star-like polyelectrolyte micelles with hydrophobic counterions a a a a,b a Roberto Fernandez-Alvarez , Lucie Nová , Filip Uhlík , Sami Kereïche , Mariusz Uchman , a a Peter Košovan , Pavel Mateˇjícˇek Department of Physical and Macromolecular Chemistry, Faculty of Science, Charles University, Hlavova 8, 128 43 Prague, Czech Republic Institute of Biology and Medical Genetics, First Faculty of Medicine, Charles University and General University Hospital in Prague, Purkynie Ustav, Albertov 4, 12 801 Prague, Czech Republic graphical a bstract article i nfo abstract Article history: Hydrophobicity of a counterion has a profound effect on the interaction with polyelectrolytes similar to Received 18 December 2018 that of multivalency. Speciﬁcally, understanding this interaction in weak polyelectrolyte micelles might Revised 15 March 2019 assist in developing nanocarriers for pH-controlled encapsulation and release. Accepted 16 March 2019 We used star-like weak polyelectrolyte micelles of polystyrene-block-poly(2-vinyl pyridine) (PS-P2VP) Available online 21 March 2019 with ﬁxed aggregation number as a model polyelectrolyte, and cobalt bis(1,2-dicarbollide) (COSAN) as a model hydrophobic anion. We used NMR to assess the mobility
Journal of Colloid and Interface Science – Elsevier
Published: Jun 15, 2019
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