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A difunctional thienylpyrrole monomer with a bromide on the thienyl moiety and a magnesium halide on the pyrrole moiety was prepared via chemo-selective magnesium-iodine exchange. Based on this monomer, a D-conjugated alternating poly(thiophene-alt-pyrrole) PTP was synthesized via nickel and palladium catalyzed Kumada polycondensation. The optical and thermal properties of this polymer have been investigated. The optical and thermal properties suggested a wide band gap polymer, with a very low Tg for such polymers.
Bibliographical noteDate of Acceptance: 25/05/2015
- alternating copolymers
- Kumada polycondensation
- step-growth polymerization