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 H-1 and C-13 NMR, FTIR, UV-Vis spectroscopy, and GPC, DSC and TGA. Second-order non-linear optical properties were measured by the second harmonic generation technique.
Preparation and characterization of thiophene copolymers with second order non-linear optical properties / C., Della Casa; A., Fraleoni Morgera; M., Lanzi; P., Costa Bizzarri; L., Paganin; F., Bertinelli; Schenetti, Luisa; Mucci, Adele; M., Casalboni; F., Sarcinelli; A., Quatela. - In: EUROPEAN POLYMER JOURNAL. - ISSN 0014-3057. - STAMPA. - 41:10(2005), pp. 2360-2369. [10.1016/j.eurpolymj.2005.04.028]
Preparation and characterization of thiophene copolymers with second order non-linear optical properties
SCHENETTI, Luisa;MUCCI, Adele;
2005
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 H-1 and C-13 NMR, FTIR, UV-Vis spectroscopy, and GPC, DSC and TGA. Second-order non-linear optical properties were measured by the second harmonic generation technique.
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