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Tailoring Optical Properties of π‐Conjugated Statistical Co‐Oligomers Composed of 3‐Pentylthiophene and 3‐[( E )‐2‐(1‐Naphthyl)vinyl]thiophene through the Monomer Ratio in the Main Chain
Author(s) -
Andryszewski Tomasz,
Czerwinski Wojciech,
Fialkowski Marcin
Publication year - 2016
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.201500347
Subject(s) - monomer , thiophene , conjugated system , polymer chemistry , fluorescence , polymer , materials science , diffraction , polymerization , chemistry , photochemistry , organic chemistry , physics , quantum mechanics , optics
Synthesis and characterization of π‐conjugated homo‐ and co‐oligomers based on thiophene substituted in position 3 by pentyl (3PT) and naphthylvinyl (NVT) side groups are presented. The resultant co‐oligomers have statistical structure and the proportion of monomers can be fully controlled by the composition of the reaction mixture. The approach here offers a facile way to synthesis of materials with tunable optoelectrical properties that is an alternative for complicated organometallic synthesis involving water and oxygen sensitive Sn, Pd, or Mg compounds. The UV–vis absorption and fluorescence emission spectra depend on and can be easily tuned by the [3PT]:[NVT] monomer molar ratio. Combination of these two monomers has a strong synergistic effect on the color of the fluorescence emission that varies in a broad range, from orange to blue color. X‐ray diffraction, calorimetric, and materials display electrical properties characteristic for organic semiconductors.