Author/Authors :
Carlo Della-Casa، نويسنده , , Alessandro Fraleoni-Morgera، نويسنده , , Massimiliano Lanzi، نويسنده , , Paolo Costa-Bizzarri، نويسنده , , Luisa Paganin، نويسنده , , Franco Bertinelli، نويسنده , , Luisa Schenetti، نويسنده , , Adele Mucci، نويسنده , , Mauro Casalboni، نويسنده , , Felice Sarcinelli، نويسنده , , Alessia Quatela، نويسنده ,
Abstract :
Azobenzene-substituted polythiophenes were prepared by copolymerization of 3-alkylthiophenes functionalized with an azo-chromophore and 3-alkylthiophenes as plastifying comonomers to improve solubility. Monomers with different oligomethylenic spacer and alkylic chain lengths were synthesized and copolymerized via FeCl3 oxidative polymerization. Polymer soluble fractions were characterized by 1H and 13C NMR, FTIR, UV–Vis spectroscopy, and GPC, DSC and TGA. Second-order non-linear optical properties were measured by the second harmonic generation technique.
Keywords :
NLO , Conjugated Polymers , Azo polymers , Copolymerization , Polythiophenes
