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2. Kristallographische und röntgenographische Bestimmungen am „Wittichenit von Sadisdorf”

✍ Scribed by Werner Borchert; Robert Schroeder


Publisher
Springer
Year
1947
Tongue
English
Weight
411 KB
Volume
1
Category
Article
ISSN
0010-7999

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Haupt- und seitenkettenkristallinität be
✍ Trafara, Gundolf ;Koch, Reimer ;Sausen, Eckhard 📂 Article 📅 1978 🏛 Wiley (John Wiley & Sons) ⚖ 400 KB

## Abstract __Isotactic__ poly(1‐eicosylethylene) shows three polymorphic modifications. The orthorhombic modification I is formed during melt crystallization at a cooling rate ϕ<2,5K.s^−1^. The dimensions of the unit cell are calculated to be __a__=0,75 nm, __b__=8,8 nm and __c__=0,67 nm. The heat