The Structure of Acrylonitrile-Butadiene Rubbers: Paramagnetic-Probe Study

Nadezhda Livanova, Svetlana Karpova and Gennady Zaikov
Affiliation: 
Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygina str., 119991 Moscow, Russia; livanova@sky.chph.ras.ru
DOI: 
https://doi.org/10.23939/chcht07.01.069
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Abstract: 
Chain microstructures and supramolecular structures of nitrile- butadiene rubbers are studied by ESR spectroscopy. On the temperature dependences of the rotational mobility (correlation time τc) of paramagnetic probe 2,2,6,6-tetramethylpiperidine-1-oxyl, relaxation transitions are observed. It is shown that there is a correlation between the Arrhenius parameters of rotational mobility of radical and the copolymer composition and that different brands of rubbers differ in microstructure and supramolecular structure.
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