Highly oriented thin films of a substituted oligo(para‐phenylenevinylene) on friction‐ transferred PTFE substrates

Highly oriented thin films of oligo(p‐phenylenevinylene)s, oligoPPVs, provide information about the structure of polyPPV and structure‐property relationships. It is shown that deposition of a substituted oligoPPV onto highly preoriented PTFE substrates leads to highly oriented thin films and that annealing produces a remarkable morphological change (see Figure and also the cover), an indication of epitaxial growth. magnified image