## 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, 3. Darstellung des druckeinflusses auf das spezifische volumen im technischen temperatur- und druckbereich
✍ Scribed by Karl, Veit-Holger ;Asmussen, Frithjof ;Ueberreiter, Kurt
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1977
- Weight
- 387 KB
- Volume
- 178
- Category
- Article
- ISSN
- 0025-116X
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✦ Synopsis
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 curve at atmospheric pressure has to be measured.
📜 SIMILAR VOLUMES
## 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