Non-dependence of dodecamer structures on alkyl chain length in Platonic micelles

Abstract

The monodisperse micellar aggregation number remains constant at 12 when increasing the alkyl chain length from C4 to C6, which is unique behaviour of Platonic micelles.

Assembling features of calixarene-based amphiphiles and supra-amphiphiles

“…The Sakurai group systematically studied assembly behavior of a series of calixarene micelles, whose head groups, including sulfonate group, 64,65 primary amine group, 63,122,124 quaternary amine group, 63 cysteine, 139 glutamic acid, 140 polyamidoamine, 63 mono/disaccharides, 63,157 PEG, 63,150 and so on, were conjugated with calixarene at the upper rim by a click reaction. Using methods including SAXS, AUC, AF4-MALS and LS, the morphologies and N agg values of these micelles were determined.…”

“…However, a series of amine group bearing calixarenes show a different behavior. 124 Their platonic micelles bearing butyl, heptyl, and hexyl chains remain at 12-mer. This phenomenon and discrete N agg may indicate that the coverage ratio defined by the Tammes problem is more suitable than packing parameter theory in the case of investigating small micelles.…”

Monodisperse Micelles with Aggregation Numbers Related to Platonic Solids

“…In recent years, we designed various calix [4]arene-based surfactants to make micelles (Figure 1). [17][18][19][20][21][22][23][24][25][26][27][28] Various calix [4]arenebased surfactants were self-assembled to micelle structures, which showed monodisperses in aqueous solutions. Interestingly, the aggregation numbers were 4, 6, 8, 12, or 20.…”