Polyhedral oligomeric silsesquioxanes: a new class of amphiphiles at the air/water interface |
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| Authors: | Deng Jianjun Polidan Joseph T Hottle John R Farmer-Creely Catherine E Viers Brent D Esker Alan R |
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| Institution: | Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, USA. |
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| Abstract: | Insoluble films of trisilanolisobutyl-POSS and octaisobutyl-POSS at the air/water interface are investigated by means of surface pressure - area per molecule isotherm (Pi - 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. |
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