Abstract

Ten symmetrical oligomers containing either triphenylamine or carbazole substituents as end-groups and 1,4-phenylenevinylene, 1,4-phenylene imine, azine and 1,4-phenylene ethynylene as π-spacers, have been synthesized by polycondensation reactions between aromatic aldehydes (4-formyltriphenylamine and 3-formyl N-hexylcarbazole) or iodides (4-iodotriphenylamine and 3-iodo N-hexylcarbazole) with bisphosphonate derivative, 1,4-diaminobenzene, hydrazine or 1,4-diethynylbenzene, respectively. These oligomers are models for the corresponding conducting polymers, have a well-defined molecular structure, can be highly purified using common methods and processed as thin films by vacuum evaporation, dip or spin coating. The oligomers preserve all of the properties and potential applications of the corresponding polymers. The structural characterization of these oligomers was performed using usual spectroscopic methods (1H-RMN, FT-IR and DSC) and their photophysical properties were analyzed by UV–Vis and fluorescence spectroscopy. Their redox properties were studied by cyclic voltammetry.

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.