CP-MAS 13C-NMR study of the degradation of polyacetylene in air

High resolution 13C-NMR spectra of solid polyacetylenes were observed by the CP-MAS technique after oxidation in air. On the basis of the analysis of the observed spectra one can conclude that networks were formed during the oxidation by cross-linking between saturated carbon atoms in the polyacetyl...

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Bibliographic Details
Published in:Polymer degradation and stability 1987, Vol.17 (1), p.5-12
Main Authors: Sohma, Junkichi, Tabata, Masayoshi, Ebisawa, Fumihiro, Hatano, Masahiro
Format: Article
Language:English
Subjects:
Applied sciences
Chemical reactions and properties
Crosslinking, vulcanization
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
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Summary:High resolution 13C-NMR spectra of solid polyacetylenes were observed by the CP-MAS technique after oxidation in air. On the basis of the analysis of the observed spectra one can conclude that networks were formed during the oxidation by cross-linking between saturated carbon atoms in the polyacetylene molecules. Formation of carbonyl groups in the polyacetylene started in the early stages of the oxidation but was not the predominant reaction throughout the oxidation process. These conclusions were supported by the results of elemental analysis, infra-red and optical spectroscopies.
ISSN:0141-3910
1873-2321
DOI:10.1016/0141-3910(87)90043-7