IR studies on preoxidized PAN fibres
1976; Elsevier BV; Volume: 14; Issue: 4 Linguagem: Inglês
10.1016/0008-6223(76)90109-3
ISSN1873-3891
AutoresS. P. Varma, Banarsi Lal, N. K. Srivastava,
Tópico(s)Conducting polymers and applications
ResumoIR absorption spectra of preoxidized PAN fibres have been studied in the spectral region 2–15 μ. Observed frequencies have been assigned to the different modes of vibration. The neighbouring frequencies appearing in the stretching mode region of the nitrile group has been interpreted in terms of Fermi-resonance and a basis for the correlation between their intensity ratio and the degree of oxidation has also been discussed.
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