Determining polymer molecular weight distributions from rheological properties using the dual-constraint model
โ Scribed by Cattaleeya Pattamaprom; Ronald G. Larson; Anuvat Sirivat
- Book ID
- 106070783
- Publisher
- Springer-Verlag
- Year
- 2008
- Tongue
- English
- Weight
- 447 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0035-4511
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๐ SIMILAR VOLUMES
For determination of mol. wt. distribution from sedimentation--diffusion equilibria, the concentrations or the concentration gradients are measured in a number of places in the solution column for equilibria at various rotor speeds. The mol. wt. distribution is represented by a given series of tool.
The calculation of the molecular weight distribution (MWD) of a polymer from its rheological properties is an attractive method since rheological measurements are comparatively faster and cheaper than the classical gel permeation chromatography technique (GPC). The calculation, however, still has so
## Abstract The objective of this paper is the modelling of the molecular weight distribution (MWD) and the polydispersity index (P. I.) of polystyrene grafted on porous silica beads prefunctionalized by a thiosilane molecule. Grafting occurs by a transfer reaction to the fixed mercapto groups. We