✦ LIBER ✦
Observation of microscopic patterning at the air/water interface by mixtures of amphiphilic cyclodextrins: a compression isotherm and Brewster angle microscopy study
✍ Scribed by M. Munoz; R. Deschenaux; A. W. Coleman
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 82 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0894-3230
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✦ Synopsis
Mixed monolayers of per-6-ammonium-per-6-deoxy-per-O 2 , O 3 -hexyl-b-cyclodextrin (1) and per-O 2 , O 3 -hexanoyl-b-cyclodextrin (2) were studied at the air/water interface by Langmuir balance techniques and Brewster angle microscopy. The mixed monolayers show non-ideal mixing with formation of a 3:2 complex between 1 and 2. Brewster angle microscopy showed the formation of microscopic patterning at the interface by the complex and that the spaces within the two-dimensional cage structures formed are occupied by excess of 2 which can undergo phase changes within the cage structures.