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Correlation between 13 C NMR Chemical Shifts and Conformation of Polymers. 3. Hexad Sequence Assignments of Methylene Spectra of Polypropylene

โœ Scribed by Zambelli, A.; Locatelli, P.; Provasoli, A.; Ferro, D. R.


Book ID
118244706
Publisher
American Chemical Society
Year
1980
Tongue
English
Weight
444 KB
Volume
13
Category
Article
ISSN
0024-9297

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The 13C NMR spectra of a series of 1,3-dipyridyl-and pyridylphenylthioureas have been obtained. Complete analyses of the experimental spectra have provided the chemical shifts and coupling constants. The spectra of dipyridylthioureas over a temperature range showed important changes which could be a