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Journal of colloid and interface science

Tuning the position of head groups by surfactant design in mixed micelles of cationic and carbohydrate surfactants.


PMID 29096103

Abstract

Emerging applications of carbohydrate/cationic surfactant mixtures require not only synergistic mixing, but also accessible sugar headgroups at the exterior of micelles. A previous study showed that the glucoside headgroups of octyl-β-d-glucopyranoside aggregate at the interior of mixed micelles with equimolar cetyltrimethylammonium bromide rather than mixing with trimethylammonium groups at the corona. The current study tests the hypothesis that structural characteristics of the surfactants (the relative lengths of the alkyl tails and the type of linker) can be tuned to shift the carbohydrate groups to micelle surfaces. The structural arrangement of 30 mM equimolar mixed micelle solutions in D Matching surfactant alkyl tail lengths is found ineffective at "pushing out" the carbohydrate headgroups due to a large mismatch in interactions between the headgroups and D

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30725
Decyltrimethylammonium bromide, ≥98.0% (NT)
C13H30BrN