Nuclear magnetic resonance spectroscopy of partially saturated diene polymers. II. 13C-NMR spectra of partially hydrogenated natural rubber, gutta percha, and cis-1,4-polybutadiene
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چکیده
منابع مشابه
Nuclear magnetic resonance spectroscopy: 13C spectra of unsubstituted inositols.
The chemical shifts of (13)C in natural abundance have been obtained from nuclear magnetic resonance spectra of scyllo-, myo-, chiro-, and epi-inositols at 15.1 MHz. A set of empirical substitutent parameters were derived and shown to be moderately successful in correlating the (13)C resonance-line positions for these substances. The substituent parameters conform generally to the idea that ste...
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Salt crystallization is one of the most important reasons for the decay of historical objects. A well known example is the historical city of Venice in which there is a lot salt decay. Reducing salt contamination is important for conservation of old historic buildings. Therefore often desalination treatments are done. The desalination of non-movable objects, like buildings, is usually made thro...
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in this research, the microstructural of low molecular weight 1,2-polybutadiene (1,2-pbd) was conducted by 1h and 13c nuclear magnetic resonance spectroscopy (nmr) to determine the isomeric contents of 1,4-cis, 1,4-trans and 1,2-vinyl in 1,2-pbd polymer structures. number average molecular weight for low molecular weight 1,2-pbd was measured by nmr techniques and the results were compared with ...
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microstructural investigation of low molecular weight 1,4-polybutadiene (1,4-pbd) was studied by 1h and 13c nuclear magnetic resonance spectroscopy (nmr). the isomer contents of 1,4-cis, 1,4-trans and 1,2- vinyl in polybutadiene microstructure were determined. the number average molecular weight for low molecular weight polybutadiene was measured by nmr techniques and comparison was made with g...
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ژورنال
عنوان ژورنال: Journal of Polymer Science: Polymer Chemistry Edition
سال: 1979
ISSN: 0360-6376,1542-9369
DOI: 10.1002/pol.1979.170170329