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Versatile Synthesis of Soluble Multifunctional Thiophene Copolymers with NLO Activity
Author(s) -
CostaBizzarri Paolo,
Lanzi Massimiliano,
Paganin Luisa,
DellaCasa Carlo,
Bertinelli Franco,
Casalboni Mauro,
Sarcinelli Felice,
Quatela Alessia
Publication year - 2003
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.200350059
Subject(s) - comonomer , thiophene , copolymer , thermogravimetric analysis , polymer chemistry , chromophore , materials science , gel permeation chromatography , polymerization , surface modification , chemistry , photochemistry , organic chemistry , polymer
Functionalized second‐order nonlinear optical (NLO) thiophene copolymers were synthesized. Two elegant syntheses based on the post‐functionalization of polymeric precursors obtained by oxidative polymerization were developed, leading to copolymers that proved to be fully soluble in common organic solvents. The new materials were characterized by NMR, FT‐IR, and UV‐vis spectroscopies, gel permeation chromatography (GPC), and thermogravimetric analysis (TGA). Moreover, the NLO activity of the new materials, as determined by corona poling alignment and second harmonic generation (SHG) measurements, showed a good agreement between the second‐order NLO coefficient and the chromophore concentration.Three‐dimensional optimization of the chromophore thiophene‐functionalized comonomer.