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Materials SciencesCoatings, Colorants and Finishes

Externally Activated Surface Modification Using Diels-Alder Ligand Chemistry and Selective Immiscibility

Authors: Frederick L. Beyer; Philip J. Costanzo; John D. Demaree; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
Abstract:
Gold particles 10 nm in diameter have been uniformly dispersed using a new dispersing agent (ligand) that is a diblock copolymer containing a Diels-Alder linkage between the blocks. Heating the sample to a specified temperature causes the particles to migrate to the surface of the film. This new strategy could be used to create coatings that can be deliberately activated or modified using an external trigger.

Limitations: APPROVED FOR PUBLIC RELEASE
Description: Final rept. Aug 2005-Aug 2006
Pages: 18
Report Date: MAR 2007
Report Number: A268464
Keywords relating to this report:
*COATINGS
*GOLD
*LIGANDS
*PARTICLES
*POLYETHYLENE
ACTIVATION
ANTIFOULING
BLOCK COPOLYMERS
CHEMISTRY
DECONTAMINATION
DISPERSANTS
LINKAGES
MAGNETIC FIELDS
MECHANICAL PROPERTIES
MILITARY APPLICATIONS
MOLECULES
SURFACES
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