Maximizing Headgroup Repulsion: Hybrid Surfactants with Ultrahighly Charged Inorganic Heads and Their Unusual Self-Assembly.
Nonequilibrium states of matter are arousing huge interest because of the outstanding possibilities to generate unprecedented structures with novel properties. Self-organizing soft matter is the ideal object of study as it unifies periodic order and high dynamics. Compared to settled systems, it becomes vital to realize more complex interaction patterns. A promising and intricate approach is implementing controlled balance between attractive and repulsive forces. We try to answer a fundamental question in surfactant science: How are processes like lyotropic liquid crystals and micellization affected, when headgroup charge becomes so large that repulsive interactions are inevitable? A particular challenge is that size and shape of the surfactant must not change. We could realize the latter by means of new hybrid surfactants with a heteropolyanion head [EW11O39]n-(E = PV, SiIV, BIII; n = 3, 4, 5). Among the unusual self-assembled structures, we report a new type of micelle with dumbbell morphology.
Department of Chemistry, University of Konstanz , D-78457 Konstanz, Germany.
Alexander
A
Klaiber
Department of Chemistry, University of Konstanz , D-78457 Konstanz, Germany.
Cornelia
C
Lanz
Department of Chemistry, University of Konstanz , D-78457 Konstanz, Germany.
Steve
S
Landsmann
Department of Chemistry, University of Konstanz , D-78457 Konstanz, Germany.
Julia
J
Gehring
Laboratory for Soft-Matter Electron Microscopy, University of Bayreuth , D-95440 Bayreuth, Germany.
Markus
M
Drechsler
Department of Chemistry, University of Konstanz , D-78457 Konstanz, Germany.
Sebastian
S
Polarz
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