Inelastic neutron scattering studies of polypyrroles and partially deuterated analogues

Authors
Fillaux, F Parker, SF Yu, LT
Citation
F. Fillaux et al., Inelastic neutron scattering studies of polypyrroles and partially deuterated analogues, SOL ST ION, 145(1-4), 2001, pp. 451-457
Citations number
40
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
SOLID STATE IONICS
ISSN journal
01672738 → ACNP
Volume
145
Issue
1-4
Year of publication
2001
Pages
451 - 457
Database
ISI
SICI code
0167-2738(200112)145:1-4<451:INSSOP>2.0.ZU;2-B
Abstract
The inelastic neutron scattering (INS) spectra from 20 to 4000 cm(-1) of va rious polypyrroles and their ring-deuterated analogues at 30 K shed light o n the proton dynamics in these materials. The doped samples obtained by mil d oxidation in the presence of FeCl3 in acidic solution were either dedoped in alkaline solution or reduced with TiCl3. The spectra give a continuum w ith constant intensity due to the recoil of free protons. Virtually all pro tons are free in the dedoped polymer. Additional protons in the doped and r educed polymers are bound. (C) 2001 Elsevier Science B.V. All rights reserv ed.