Structural characterization of hydrogenated acrylonitrile-butadiene rubbers by pyrolysis gas chromatography and infrared and nuclear magnetic resonance spectroscopy

The microstructures of hydrogenated acrylonitrile--butadiene rubbers (NBRs) with various degrees of hydrogenation were investigated by pyrolysis gas chromatography (PyGC) and infrared and nuclear magnetic resonance spectroscopy. Characteristic peaks on the pyrograms by PyGC, specific absorption band...

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Bibliographic Details
Published in:Macromolecules 1988-10, Vol.21 (10), p.2918-2924
Main Authors: Kondo, Akihiro, Ohtani, Hajime, Kosugi, Yoshio, Tsuge, Shin, Kubo, Yoichiro, Asada, Nobuyuki, Inaki, Hisanori, Yoshioka, Akira
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Properties and characterization
Structure, morphology and analysis
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Summary:The microstructures of hydrogenated acrylonitrile--butadiene rubbers (NBRs) with various degrees of hydrogenation were investigated by pyrolysis gas chromatography (PyGC) and infrared and nuclear magnetic resonance spectroscopy. Characteristic peaks on the pyrograms by PyGC, specific absorption bands in the IR spectra, and resonance peaks in the exp 1 H NMR spectra were interpreted in terms of the microstructures of the hydrogenated NBRs. Characteristic peaks in exp 13 C NMR spectra were interpreted in terms of the sequence distribution and hydrogenation mechanisms. PyGC and exp 13 C NMR also supplied good complementary information about longer sequence along the chains and the mechanisms of the hydrogenation reaction. 12 ref.--AA
ISSN:0024-9297
1520-5835
DOI:10.1021/ma00188a004