About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Characterization of Minerals, Metals and Materials
|
Presentation Title |
Film Structure of Polymerized Synthetic Dopamine by Neutron Reflectometry |
Author(s) |
Matthew J. Herman, Erik Watkins, John Yeager |
On-Site Speaker (Planned) |
Matthew J. Herman |
Abstract Scope |
Synthetic dopamine, capable of undergoing self-polymerization under ambient conditions and becoming polydopamine (PDA), has been demonstrated to form controllable nanometer thickness films. These films have been applied to various substrates, including high explosives and particle composites, promoting adhesion between the polymer binder and filler interface. These films are thought to form a core-shell architecture consisting of a rigid polymer shell over the substrate. The effects of PDA film in application and chemical composition of the polymer are well understood, but the general structure of the polymerized dopamine is lacking in the literature. Neutron reflectometry, performed on the Asterix beamline at the Los Alamos Neutron Science Center, has been employed to demonstrate the controllable nature of PDA film growth and the film’s structure. Thin film composite stack-ups of inert crystal, PDA, and polymer binder system were investigated to determine the nature of the various interfaces. |
Proceedings Inclusion? |
Planned: |
Keywords |
Polymers, Characterization, Thin Films and Interfaces |