Radiation-induced synthesis of nanostructured conjugated polymers in aqueous solution: fundamental effect of oxidizing species

Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry
Youssef LattachSamy Remita

Abstract

Synthesis of conjugated poly(3,4-ethylenedioxythiophene) (PEDOT) polymers is achieved through the radiolysis of N2O-saturated aqueous solutions of 3,4-ethylenedioxythiophene by using two different oxidizing species: HO(·) (hydroxyl) and N3(·) (azide) radicals. Both oxidative species lead to self-assembled polymers that are evidenced in solution by cryotransmission electron microscopy and UV/Vis absorption spectroscopy and, after centrifugation and deposition, by scanning electron microscopy and attenuated total reflectance FTIR techniques. Whereas HO(·) radicals lead to PEDOT-OH globular nanostructures with hydrophilic properties, N3(·) radicals enable the formation of amphiphilic PEDOT-N3 fibrillar nanostructures. These results, which highlight the differences in the intermolecular interaction behaviors of the two kinds of PEDOT polymers, are discussed in terms of polymerization mechanisms.

References

Jun 17, 2005·Chemical Communications : Chem Comm·Moon Gyu Han, Stephen H Foulger
Aug 19, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·J AttiaM Goldmann
Jul 3, 2009·The Journal of Physical Chemistry. a·P GaikwadB S M Rao
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Nov 17, 2011·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Youssef LattachSamy Remita
Aug 18, 2012·Nature Protocols·Sarah A McCarthyYurii K Gun'ko

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Citations

Nov 2, 2014·Langmuir : the ACS Journal of Surfaces and Colloids·Zhenpeng CuiSamy Remita
Mar 31, 2015·The Journal of Physical Chemistry. B·Cecilia ColettaSamy Remita

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