Center for Functional Nanomaterials Seminar
"Multi-functional Particle Assemblies in Polymer Nanocomposites"
Presented by Pinar Akcora, Department of Chemical Engineering & Materials Science
Friday, November 8, 2013, 11 am
CFN, Building 735, conference room A
Hosted by: Oleg Gang
Center for Functional Nanomaterials Seminar Multi-functional Particle Assemblies in Polymer Nanocomposites Pinar Akcora Department of Chemical Engineering & Materials Science Stevens Institute of Technology Friday, November 8, 2013 11:00 am Bldg. 735 â€" Conf. Rm. A Polymer decorated magnetic nanoparticles are a comprehensive model system offering both anisotropic and isotropic interactions that can be tuned with particle size, particle functionality (e.g. length and density of grafted chains, ions or bioligands) and external magnetic fields. Our group works on understanding the role of ionic, magnetic and isotropic attractive interactions to elucidate the formation of thermodynamically equilibrium self-assembled structures. In this talk, I will discuss the assembly of ion containing polymer-grafted iron oxide nanoparticles in polymer melts, which can be used in controlling the ion transport in polymer nanocomposites. Additionally, we study the nonlinear mechanical behavior of these composites in rheology. I will present the interfacial strengthening and ordering of polymer-grafted particle systems under large shear deformations. Host: Oleg Gang Joann Tesoriero Center for Functional Nanomaterials Bldg. 735 Upton, NY 11973 (631) 344-7791 Fax (631) 344-3093 Tesoriero@bnl.gov