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Crystallinity in Ethene−1-Hexene Copolymers Determined by 1 H and 13 C NMR. A Comparative Study

✍ Scribed by Zhang, Lili; Hansen, Eddy W.; Helland, Irene; Hinrichsen, Einar; Larsen, Åge; Roots, Jaan

Book ID
126477907
Publisher
American Chemical Society
Year
2009
Tongue
English
Weight
814 KB
Volume
42
Category
Article
ISSN
0024-9297

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✍ Rainer Benken; Klaus Finneiser; Henning Von Puttkamer; Harald Günther; Bertil El 📂 Article 📅 1986 🏛 John Wiley and Sons 🌐 German ⚖ 432 KB

Biphenylene dianion has been prepared by Li reduction of the parent hydrocarbon. It is stable below -30' and was characterized by its 'Hand I3C-NMR spectra. A comparison of these data with those of the dication indicates he existence of ion pairs in the dianion case which are responsible for a diffe