Synthesis of three-dimensionally asymmetric amphiphilic Janus magnetic nanoparticles (MNPs) was achieved by a multi-step process: (1) electrostatic particle retention on mica, (2) surface-confined ATRP of PNIPAM on the exposed NP surface, (3) release of MNP from mica, and (4) surface-confined ATRP of PMAA on the second side of the MNPs (back-fill). AFM and TEM were used to demonstrate the morphology of the Janus MNPs after each of the reaction steps. ATR-FTIR, XPS, and EDS were used to determine chemical modifications.

Stimuli-responsive biphasic-polymer Janus magnetic nanoparticles prepared via electrostatic interactions and surface-confined ATRP

245th National Meeting (2013)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.