## Abstract Measurements of specific volumes are described as function of temperature and pressure of melting or crystallizing linear polyethylene, __isotactic__ polypropylene, and polyoxymethylene. A pressure range of 50 to 1600 bar permits determination of relative volume changes as function of t
Über die Druckabhängigkeit der viskoelastischen und physikalisch-chemischen Eigenschaften von Polymeren. 2. Mitt. Spezifisches Volumen und thermische Ausdehnung einiger Polymerer beim Schmelzen und Kristallisieren
✍ Scribed by V. -H. Karl; F. Asmusscn; K. Ueberreiter
- Publisher
- Springer
- Year
- 1980
- Weight
- 158 KB
- Volume
- 258
- Category
- Article
- ISSN
- 0340-255X
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## Abstract A reduction formula for the calculation of the specific volume __v__ at any temperature __T__ and any pressure __P__ is derived; it consists of the two equations: The parameters ξ, ζ and ψ can be easily calculated from values in the literature, and therefore only a volume‐temperature c
## Abstract Melting and crystallization of polyethylene (PE) with various amounts of xylene is investigated by pressure dependent volume‐temperature curves. These can be calculated by a reduction formula described earlier. Flory's formula for lowering of the melting point of polymers by solvents pr