Accession Number:

ADA533422

Title:

Functional Perfluoroalkyl Polyhedral Oligomeric Silsesquioxane (F-POSS): Building Blocks for Low Surface Energy Materials

Descriptive Note:

Technical rept.

Corporate Author:

AIR FORCE RESEARCH LAB EDWARDS AFB CA

Report Date:

2010-10-21

Pagination or Media Count:

4.0

Abstract:

Fluorinated polyhedral oligomeric silsesquioxanes F-POSS, a subclass of POSS, were recently synthesized and have proven to be an excellent low-surface energy material for superhydrophobic and oleophobic surfaces. These F-POSS compounds consist of a silicon-oxide core with a periphery of long chain fluorinated alkyl groups ranging from 6-12 carbon atoms in length. Herein, a disilanol perfluoroalkyl polyhedral oligomeric silsequioxane F-POSS-OH2 has been synthesized via a viable multi-step synthesis 52 yield. These incompletely condesened structures were readily reacted with a variety of dichlorosilanes to produce functional F-POSS structures. Structures were confirmed with multinuclear NMR 1H, 13C, and 29Si and found to possess different solubility properties compared to the closed-cage F-POSS. These novel structures can be used as the initial building blocks for the development of new superhydrophobic and oleophobic materials.

Subject Categories:

  • Inorganic Chemistry
  • Construction Equipment, Materials and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE