Obervation of chemical shifts in a bulk crystalline polymer
β Scribed by Wilson, Chas. W.
- Publisher
- John Wiley and Sons
- Year
- 1962
- Weight
- 101 KB
- Volume
- 56
- Category
- Article
- ISSN
- 0022-3832
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract Averaging of the chemical shift over the molecular motion improves the simulated data and provides additional information about the temperature dependence and system dynamics. However, crystal modeling is difficult due to the limited precision of the planeβwave density functional theory
A theoretical model is developed to describe the melting mechanism in the transition zone of a screw extruder. The plug flow profile of the granules in the screw channel is calculated as a function of the screw speed, the barrel temperature and the mass flow rate. The assumptions made in this model