First Example of Surfactants Enclosing a Semipolar Nitrogen−Boron Bond

We describe a new surfactant family whose hydrophilic head contains a semipolar N+−B- bond in a stable aminopropylborane structure. These compounds were synthesized by hydroboration of allylic amines with good yields (>90%). Parameters characterizing their surface activity (critical micelle conce...

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Bibliographic Details
Published in:Langmuir 1996-05, Vol.12 (9), p.2128-2129
Main Author: Le Toumelin, Jean-Brice
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Surface physical chemistry
Surface-active agents: properties
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Summary:We describe a new surfactant family whose hydrophilic head contains a semipolar N+−B- bond in a stable aminopropylborane structure. These compounds were synthesized by hydroboration of allylic amines with good yields (>90%). Parameters characterizing their surface activity (critical micelle concentration, surface tension, superficial excess, molecular area at the water−air interface) along with the phase diagram in a water−isooctane−butanol system were determined. The compounds show promise for use in organized molecular systems (OMS).
ISSN:0743-7463
1520-5827
DOI:10.1021/la951030w