Hydrophobic Silsesquioxane Nanoparticles and Nanocomposite Surfaces

reportActive / Technical Report | Accession Number: ADA500716 | Open PDF

Abstract:

Fluorinated Polyhedral Oligomeric Silsesquioxanes are hydrophobic nanoparticles. One compound, FD8T8, is ultrahydrophobic, possessing a water contact angle of 154-deg. This is believed to be the most hydrophobic and lowest surface tension crystalline substance known. Analysis of the x-ray crystal structure indicates a large number of Si-deg F contacts may lead to ultrahydrophobicity.

Author(s):
Mabry, Joseph M ; Vij, Ashwani ; Viers, Brent D. ; Grabow, Wade W. ; Marchant, Darrell ; Iacono, Scott ; Ruth, Patrick N. ; Vij, Isha
Author Organization(s):
AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
Descriptive Note:
Book chapter (preprint)
Supplementary Note:
To be published in the American Chemical Society Series as a Book Chapter entitled, "Silicones and Silicone-Modified Materials." Prepared in collaboration with ERC, Inc. Sponsored in part by Air Force Office of Scientific Research (AFOSR).
Pagination:
0013

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFRL-RZ-ED-BK-2007-473
Task Number(s):
06
Project Number(s):
2303
Monitor Series:
AFRL-RZ-ED
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_8_Building Partnerships; JCA_8.2_Shape
Modernization Areas:
Microelectronics
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*SILOXANES, *FLUORINATION, *HYDROPHOBIC PROPERTIES, *NANOPARTICLES, X RAYS, OLIGOMERS, SILICON, SURFACE TENSION, COMPOSITE STRUCTURES, SYNTHESIS(CHEMISTRY), WATER, CRYSTAL STRUCTURE
Field(s)/Group(s):
Inorganic Chemistry, Organic Chemistry, Physical Chemistry
Keyword(s):
*NANOCOMPOSITES, POSS(POLYHEDRAL OLIGOMERIC SILSESQUIOXANES), WUAFRL23030521
Report Date:
2008 Sep 23
Creation Date:
2009 Jul 08