Polymer Mobility in Thin Films

This is the authors' abstract. We don't add key points for this paper.

We present results from a diffusion study of polymer chains in thin films, in which the mobility of chains labeled with a fluorescent dye in a matrix of unlabeled chains has been measured using fluorescence recovery after patterned photobleaching. The results presented here indicate that there is a substantial decrease in the lateral diffusion coefficient for films thinner than ∼1500 Å.