Biomimetic synthesis of a water soluble conducting molecular complex of polyaniline and lignosulfonate.
A new biomimetic route for the synthesis of a conducting molecular complex of polyaniline (Pani) and a natural polyelectrolyte, lignosulfonate (LGS) is presented. A poly(ethylene glycol) modified hematin (PEG-hematin) was used to catalyze the polymerization of aniline in the presence of LGS to form a Pani/LGS complex. UV-vis, FTIR, conductivity and TGA studies for the LGS-polyaniline complex indicate the presence of a thermally stable and electrically conductive form of polyaniline. Also the presence of LGS in this complex, an inexpensive byproduct from pulp processing, provides a unique combination of properties such as electronic conductivity, processability and biodegradability. The use of this conductive complex for corrosion protection is also proposed.
Roy
Sucharita
S
Center for Advanced Materials, Departments of Chemistry and Physics, University of Massachusetts-Lowell, Lowell, MA 01854, USA.
Fortier
Jacqueline M
JM
Nagarajan
Ramaswamy
R
Tripathy
Sukant
S
Kumar
Jayant
J
Samuelson
Lynne A
LA
Bruno
Ferdinando F
FF
D000814:Aniline Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D001673:Biodegradation, Environmental; D003343:Corrosion; D004553:Electric Conductivity; D006427:Hemin / Q000737:chemistry; D008031:Lignin / Q000031:analogs & derivatives* / Q000138:chemical synthesis* / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D012995:Solubility; D013696:Temperature
D000814:Aniline Compounds; D011108:Polymers; C416807:polyaniline; D006427:Hemin; C001545:lignosulfuric acid; D008031:Lignin