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Title: Method for making nanoporous hydrophobic coatings

Patent ·
OSTI ID:1083605

A simple coating method is used to form nanoporous hydrophobic films that can be used as optical coatings. The method uses evaporation-induced self-assembly of materials. The coating method starts with a homogeneous solution comprising a hydrophobic polymer and a surfactant polymer in a selective solvent. The solution is coated onto a substrate. The surfactant polymer forms micelles with the hydrophobic polymer residing in the particle core when the coating is dried. The surfactant polymer can be dissolved and selectively removed from the separated phases by washing with a polar solvent to form the nanoporous hydrophobic film.

Research Organization:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
8,425,981
Application Number:
13/033,292
OSTI ID:
1083605
Country of Publication:
United States
Language:
English

References (2)

Molding technique for fabrication of optoelectronic devices patent August 2007
Method for making surfactant-templated, high-porosity thin films patent August 2001

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