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Effect of ion pair formation on the structure of polymer micelles with ionic amphiphilic coronae
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10.1063/1.4807005
/content/aip/journal/jcp/138/20/10.1063/1.4807005
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/20/10.1063/1.4807005
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic representation of a micelle with a charged corona. Three types of counterion states are distinguished: bound counterions forming ion pairs, free counterions within the micelle corona and in the outer solution.

Image of FIG. 2.
FIG. 2.

Corona thickness (a) and core radius (b) in units, polymer volume fraction Φ in corona (c), fraction of counterions in the outer solution α (d) and aggregation number (e) as functions of β for = = 100, = 2, γ / = 4.1, and = 10. Curves correspond to χ = 0.5 and χ = 0.8.

Image of FIG. 3.
FIG. 3.

Aggregation number (a), fraction of counterions in the outer solution α (b), fraction of ion pairs (c), volume fraction of the polymer in corona Φ (d), and total micelle charge in units (e) as the functions of β for = = 100, = 2, γ / = 4.1, χ = 0.55, = 10. Curves correspond to the case of no ion binding = 0 (1) and δε = 0.67 (2), δε = 0.69 (3), and δε = 0.7 (4).

Image of FIG. 4.
FIG. 4.

Schematic representation of two consecutive transitions in micelles induced by corona block charging.

Image of FIG. 5.
FIG. 5.

Aggregation number (a) and fraction of ion pairs (b) as functions of β for = = 100, δε = 0.7, γ / = 4.1, χ = 0.55,  = 10. Curves correspond to = 1.8 (1),  = 1.9 (2),   = 2 (3),   = 2.1 (4).

Image of FIG. 6.
FIG. 6.

Aggregation number (a) and fraction of ion pairs (b) as functions of β for = = 100,  = 2, δε = 0.7, γ / = 4.1,  = 10. Curves correspond to χ = 0.55, χ = 0.9.

Image of FIG. 7.
FIG. 7.

Aggregation number (a) and fraction of ion pairs (b) as functions of χ for = = 100,  = 1, δε = 0.78, γ / = 4.1, β = 0.25,  = 10.

Image of FIG. 8.
FIG. 8.

β − diagram of micelle states for the fixed value of Flory-Huggins interaction parameter χ = 0.7. Micelle types (large PE, small PE, ionomer-type) are depicted on the diagram.

Image of FIG. 9.
FIG. 9.

First-order phase transition lines of the solution for different values of Flory-Huggins interaction parameter χ. Curves correspond to χ = 0.55, χ = 0.7, χ = 0.9. Critical points are depicted by bold dots.

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/content/aip/journal/jcp/138/20/10.1063/1.4807005
2013-05-24
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of ion pair formation on the structure of polymer micelles with ionic amphiphilic coronae
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/20/10.1063/1.4807005
10.1063/1.4807005
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