I t has long been assumed that the effect of temperature on the diffusion coefficient D , the sedimentation coefficient s , and other hydrodynamic parameters is correctly described by Walden's rule and its extensions, i.e., hydrodynamic properties of dilute solutions of macromolecules scale linearl
Diffusion of polystyrene micronetwork spheres in melts of polyvinylmethylether
β Scribed by C. Pies; H. Sillescu
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 300 KB
- Volume
- 48
- Category
- Article
- ISSN
- 0323-7648
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Small-angle neutron scattering was used to measure the radius of gyration and thermodynamics of blends of poly(vinylmethylether) (PVME) at dilute concentration in deuterated polystyrene (PSD). The data were analyzed using the Zimm equation and the random phase approximation theory. For PVME with a w
Mutual diffusion coefficients are measured for the ethylbenzene-polystyrene system for the temperature range of 115.5Β°-1780C and for concentrations as high as.70 wt-96 ethylbenzene. Experiments were carried out using a quartz spring sorption apparatus which was modified for hightemperature measureme