Accession Number:

ADA474810

Title:

Novel Galvanic Corrosion Inhibitors: Synthesis, Characterization, Fabrication and Testing

Descriptive Note:

Final rept. 1 Sep 2001-30 Sep 2007

Corporate Author:

CLARK ATLANTA UNIV GA

Personal Author(s):

• Harruna, Issifu I.

Report Date:

2007-09-30

Pagination or Media Count:

27.0

Abstract:

In materials strategy, the Department of the Navy is the first to consider the development of novel anti-corrosion inhibitors. Thus we proposed to develop novel corrosion inhibitors based on polymer metallocomplex composite materials. These new materials can cut off the electron transfer path via the polymer metallocomplexes. Bipyridine-based polymerizable ligand monomers were synthesized starting from 4,5-diazatluoren-9-one 1. The copolymers of the polymerizable methacrylate-type monomer with styrene, methyl methacrylate, and butyl methacrylate have strong blue-light- emitting properties. Amphiphilic tris2,2-bipyridineruthenium-cored star polymers of polystyrene and polyN-isopropylacrvlannide were found to self-assemble into core-shell micelles in which the ruthenium ions are located on the interface between core and shell. The amphiphilic star-shaped metallopolymer with longer PNIPAM blocks formed micro-sized aggregates at high concentration To prepare ligand-endfunctionalizedd polymers, we also synthesized ligand-functionalized initiators. We also synthesized the nanoparticles of zeolite Y of various chemical compositions using various techniques such as the addition of organic additives to conventional zeolite Y synthesis mixtures to suppress zeolite Y crystal growth nanoporous slilcate host materials of up to 30 nm pore diameter, using poly alkylene oxide copolymers, which when removed will yield a mesoporus material and investigated the zeolite YNannnroas composite materials as hosts for corrosion inhibitors.

Descriptors:

• *SYNTHESIS(CHEMISTRY)
• *FABRICATION
• *COPOLYMERS
• *RUTHENIUM
• *CORROSION INHIBITION
• *GALVANIC CORROSION
• *ZEOLITES
• EMISSION
• IONS
• MIXTURES
• OXIDES
• ADDITIVES
• BUTYL RUBBER
• CRYSTAL GROWTH
• ELECTRON TRANSFER
• STARTING
• METHACRYLATES
• CONCENTRATION(COMPOSITION)
• CHEMICAL COMPOSITION
• STRATEGY
• PATHS
• COMPOSITE MATERIALS
• STYRENES
• POLYSTYRENE

Subject Categories:

• Polymer Chemistry
• Laminates and Composite Materials
• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE