Abstract
A series of π-conjugated alternating copolymers consisting of Th-ITN-Th and p-C6H2(OR)2 units were synthesized. XRD indicated that the copolymers assume an interdigitation packing mode, and UV-Vis spectra revealed a strong tendency for self-assembly. Upon molecular assembly of the copolymer, the UV-Vis absorption shifted by about 100nm to a longer wavelength from that of the single molecule. The copolymers underwent electrochemical oxidation (or p-doping) and reduction (or n-doping) at 0.2 and -2.0V versus Ag+/Ag, respectively. A p-doped copolymer film showed an electrical conductivity of 182 S ·cm-1, and the temperature dependence of electrical conductivity was measured. The copolymer showed piezochromism and served as a p-channel material for a field-effect transistor.
Original language | English |
---|---|
Pages (from-to) | 2138-2147 |
Number of pages | 10 |
Journal | Macromolecular Chemistry and Physics |
Volume | 211 |
Issue number | 19 |
DOIs | |
State | Published - 2010/10/01 |
Keywords
- Conducting polymers
- Conjugated polymers
- Isothianaphthene
- Polyaromatics
- Self-assembly
ASJC Scopus subject areas
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Polymers and Plastics
- Organic Chemistry
- Materials Chemistry