1994
DOI: 10.1007/bf00550782
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Appearance and development of polyconjugated structures in heat treatment of polyacrylonitrile fibres

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“…Since the EPR signals of zero-valence metals are registered in a range close to the g -factor of the free electron and they are similar to the signals of polyconjugated polymers (the triple CN bond of acrylonitrile can be polymerized under certain conditions forming double-chain conjugate polymers), , it is necessary to exclude or determine the contributions of the latter into the narrow signals of nanocomposites. To check this, the copolymer VT–AN of composition 11:89 with high content of acrylonitrile obtained at a high-temperature regime up to 573 K during 1.5 h is used.…”
Section: Resultsmentioning
confidence: 99%
“…Since the EPR signals of zero-valence metals are registered in a range close to the g -factor of the free electron and they are similar to the signals of polyconjugated polymers (the triple CN bond of acrylonitrile can be polymerized under certain conditions forming double-chain conjugate polymers), , it is necessary to exclude or determine the contributions of the latter into the narrow signals of nanocomposites. To check this, the copolymer VT–AN of composition 11:89 with high content of acrylonitrile obtained at a high-temperature regime up to 573 K during 1.5 h is used.…”
Section: Resultsmentioning
confidence: 99%