Film Thickness Dependence of Surface and Internal Morphology Evolution in Polymer-Grafted Nanocomposites
Aria C. Zhang,
Kohji Ohno,
Russell J. Composto
Abstract:This study investigates the interplay between film thickness and the surface and internal morphologies in polymer nanocomposite (PNC) films. The PNC is 25 wt % poly(methyl methacrylate)-grafted silica nanoparticles (NPs) in poly(styrene-ran-acrylonitrile) annealed in the twophase region. At greatest confinement (120 nm), NP surface density remains constant, and lateral phase separation is inhibited upon annealing. For thicker films (240−1400 nm), surface density increases with time before approaching ca. 740 N… Show more
Set email alert for when this publication receives citations?
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.