Polyacetylene Formed by the Benzoin Dianion Reduction of Poly(tetrafluoroethylene)

Z. Iqbal; D. M. Ivory; J. S. Szobota; R. L. Elsenbaumer; R. H. Baughman

doi:10.1021/ma00166a020

Polyacetylene Formed by the Benzoin Dianion Reduction of Poly(tetrafluoroethylene)

Z. Iqbal
, D. M. Ivory
, J. S. Szobota
, R. L. Elsenbaumer
, R. H. Baughman

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

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)
Pages (from-to)	2992-2996
Number of pages	5
Journal	Macromolecules
Volume	19
Issue number	12
DOIs	https://doi.org/10.1021/ma00166a020
State	Published - 1986
Externally published	Yes

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/ma00166a020

Cite this

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title = "Polyacetylene Formed by the Benzoin Dianion Reduction of Poly(tetrafluoroethylene)",

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.",

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year = "1986",

doi = "10.1021/ma00166a020",

language = "English (US)",

volume = "19",

pages = "2992--2996",

journal = "Macromolecules",

issn = "0024-9297",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Polyacetylene Formed by the Benzoin Dianion Reduction of Poly(tetrafluoroethylene)

AU - Iqbal, Z.

AU - Ivory, D. M.

AU - Szobota, J. S.

AU - Elsenbaumer, R. L.

AU - Baughman, R. H.

PY - 1986

Y1 - 1986

N2 - 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.

AB - 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.

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UR - https://www.scopus.com/pages/publications/0001467838#tab=citedBy

U2 - 10.1021/ma00166a020

DO - 10.1021/ma00166a020

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SN - 0024-9297

VL - 19

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EP - 2996

JO - Macromolecules

JF - Macromolecules

IS - 12

ER -

Polyacetylene Formed by the Benzoin Dianion Reduction of Poly(tetrafluoroethylene)

Abstract

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