Polyhedral Oligomeric Silsesquioxanes:  A New Class of Amphiphiles at the Air/Water Interface

Polyhedral Oligomeric Silsesquioxanes:  A New Class of Amphiphiles at the Air/Water Interface

Insoluble films of trisilanolisobutyl-POSS and octaisobutyl-POSS at the air/water interface are investigated by means of surface pressure − area per molecule isotherm (Π − A) and Brewster angle microscopy (BAM). Analysis of the experimental results shows the partial cage molecule, trisilanolisobutyl...

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Veröffentlicht in:Journal of the American Chemical Society 2002-12, Vol.124 (51), p.15194-15195
Hauptverfasser: Deng, Jianjun, Polidan, Joseph T, Hottle, John R, Farmer-Creely, Catherine E, Viers, Brent D, Esker, Alan R
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Surface properties
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Beschreibung
Zusammenfassung:Insoluble films of trisilanolisobutyl-POSS and octaisobutyl-POSS at the air/water interface are investigated by means of surface pressure − area per molecule isotherm (Π − A) and Brewster angle microscopy (BAM). Analysis of the experimental results shows the partial cage molecule, trisilanolisobutyl-POSS, is a surface-active molecule that self-assembles into uniform monolayer upon compression; but the fully condensed cage molecule, octaisobutyl-POSS, is nonamphiphilic.
ISSN:0002-7863
1520-5126
DOI:10.1021/ja027860v