Polymer Engineering Faculty Research

Direct observation of interfacial C-60 cluster formation in polystyrene-C-60 nanocomposite films

Alamgir Karim


Large interfacial C(60) clusters were directly imaged at the supporting film-substrate interface in physically detached polystyrene-C(60) nanocomposite films by atomic force microscopy, confirming the stabilizing mechanism previously hypothesized for thin polymer films. Additionally, we found that the C(60) additive influences basic thermodynamic film properties such as the interfacial energy and the film thermal expansion coefficient.