A New Terpyridine Tethered Polythiophene: Electrosynthesis and Characterization

作者：Manca Paola; Pilo Maria I^*; Casu Giovanni; Gladiali Serafino; Sanna Gavino; Scanu Roberta; Spano Nadia; Zucca Antonio; Zanardi Chiara; Bagnis Diego; Valentini Luca

来源：Journal of Polymer Science Part A: Polymer Chemistry , 2011, 49(16): 3513-3523.

DOI：10.1002/pola.24786

• conducting polymers
• electrochemistry
• FTIR
• synthesis
• UV-visible spectroscopy

A novel polythiophene bearing a pendant terpyridine moiety has been synthesized by electrochemical polymerization of a new thiophene monomer, namely 4'-(2,2':5',2 ''-terthien-3'-ethynyl)-2,2':6',2 ''-terpyridine (TAT). The insertion of a conjugated ethynyl spacer between the terthiophene and the terpyridine fragments provides for an effective extension of the delocalization of electrons within the structural unit and the polymer as a whole. The synthesis and characterization of the relevant monomer, the electrosynthesis of the corresponding polymer and its electrochemical, UV-visible spectroelectro-chemical and IR characterization are described. Finally, a comparison between the electrochemical, spectroscopic, and spectroelectrochemical properties of PTAT and the analogue, saturated-spacer PTTT (TTT 4'-[(2,2': 5',2 ''-terthien-3'-yl)methoxy]- 2,2': 6',2 ''-terpyridine) polymer is discussed.

• 出版日期2011-8-15