Abstract
The reflective, gold-colored surface layer produced on reduction of poly(tetrafluoroethylene) (PTFE) films with benzoin dianion in dimethyl sulfoxide (Me2SO) has previously been reported to be a reactive form of carbon. In this work the material has been prepared on the surfaces of polycrystalline PTFE films and powder. It was characterized by resonance-enhanced Raman scattering, photoacoustic Fourier transform infrared spectroscopy, and electron microscopy. The resonance Raman spectrum indicates that the reduced PTFE surface contains trans-polyacetylene (trans-(CH)x) with polyene conjugation lengths consisting of 12–28 olefin units. trans-(CD)x is formed when Me2SO-d6 is used as the reaction solvent, indicating that the protons on the polyacetylene originate from the solvent used in the reduction reaction. Infrared spectra also show the presence of a lesser amount of a carbonaceous fraction composed of aromatic rings and C=C bonds.
Original language | English (US) |
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Pages (from-to) | 2992-2996 |
Number of pages | 5 |
Journal | Macromolecules |
Volume | 19 |
Issue number | 12 |
DOIs | |
State | Published - 1986 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry