Polyphenylenevinylene

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Mixture of two different types of PPV (see m. Ringed PPV molecules). Initially PPV blend film was deposited on another polymer and then removed by floating. Resulted structure is explained by dewetting (structure on topography) and demixing (pronounced phase contrast) on the interface between layer of two PPVs and substrate.
We thank Dutch Polymer Institute and Dr. M.M.Koetse for this sample.