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Synthesis, characterization and properties of conjugated poly(1-alkyl-2,5-pyrrylene vinylene)

Conference ·
OSTI ID:20034137
A series of poly(N-alkylpyrrylene vinylenes)(alkyl = methyl, hexyl, dodecyl) have been synthesized from the monomer, N-alkyl-2,5-bis(thiophenylmethylene)pyrrole, by base induced elimination and polymerization. The resulting deep purple conjugated polymers were soluble in a variety organic solvents. The electrical conductivities of the polymers lie in the range, 10{sup {minus}2} to 2.5 S/cm. The highest yield was obtained when the polymers were synthesized in refluxing THF with a monomer/base mole ratio of 1/4. The optical band gap of the undoped polymers were 1.89 eV, 1.69 eV and 1.65 eV. Characterization of the polymers includes IR, CV, {sup 1}H and {sup 13}C NMR, UV-vis spectroscopy, TGA and molecular weight studies.
Research Organization:
Univ. of Texas, Arlington, TX (US)
OSTI ID:
20034137
Country of Publication:
United States
Language:
English