A new water-soluble poly(p-phenylene vinylene-co-methacrylic acid) copolymer was synthesized based on the introducing non-conjugated water-soluble group to conjugated backbone, which was different from previous works by functionalizing the fully conjugated group side chains to obtain water-solubility. The synthesized copolymer exhibits efficient blue emission.
The preparation and formation mechanism of silica/polyvinylpyrrolidone（PVP）-polyacrylonitrile（PAN） coaxial nanofibers were presented in this paper. The PVP-PAN composite nanofibers were obtained via an electrospinning technique, while SiO2 nanoparticles were prepared according to a Stber method. The measurements of water contact angle（WCA）, the compared results of silica coating PVP-PAN composite nanofibers with PAN nanofibers indicate that much PVP resided on the composite nanofiber surface, which results in the occurrence of SiO2@polymer coaxial nanofibers due to the formation of hydrogen bonding between silica and composite nanofibers and subsequent adsorption of silica on the fiber surface.
