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Updated: Jul 27, 2026
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Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
Poly-p-phenylene phosphine/polyaniline alternating copolymers: electronic delocalization through phosphorus
1Department of Chemistry, University of Rhode Island, Kingston, Rhode Island 02881, USA.
Journal of the American Chemical Society
|April 14, 2005
Summary
New phosphorus-containing poly(N-arylaniline)s (PANI) copolymers exhibit pi-conjugation and electronic delocalization through phosphorus. These novel polymers show potential for advanced electronic applications due to their unique properties.
Area of Science:
- Polymer Chemistry
- Materials Science
- Organic Electronics
Background:
- Poly(N-arylaniline)s are known for their electronic properties.
- Incorporating phosphorus into polymer backbones offers new avenues for tuning electronic behavior.
Purpose of the Study:
- To synthesize and characterize novel phosphorus-containing poly(N-arylaniline)s (PANI).
- To investigate the impact of phosphorus linkages on the electronic and spectroscopic properties of PANI copolymers.
- To explore the potential for electronic delocalization through phosphorus atoms in these polymers.
Main Methods:
- Synthesis of phosphorus-containing PANI copolymers and model compounds.
- UV-vis-NIR spectroscopy for electronic property analysis.
- Cyclic voltammetry for electrochemical investigation.
Main Results:
- PPPP-PANI copolymers with p-phenylene diamine units showed properties typical of aromatic diamines.
- Copolymers with specific phosphorus-containing linkages (-(-P-C(6)H(4)-N-C(6)H(4)-)-) exhibited strong electronic delocalization.
- Phosphorus(III) phosphine to phosphorus(V) phosphine oxide conversion inhibited delocalization, confirming lone pair involvement.
Conclusions:
- Phosphorus-containing PANI copolymers represent a new class of pi-conjugated polymers.
- Electronic delocalization occurs through phosphorus bridges in specific copolymer structures.
- These materials possess low oxidation potentials, suggesting utility in electronic devices.
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