Dynamic light scattering measurements on the polystyrene/ethyl acetate system at semi-dilute concentrations as a function of temperature |
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| Authors: | Petr ?těpànek Jaromír Jake? ?esmír Koňák Robert Johnsen Wyn Brown |
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| Affiliation: | (1) Institute of Macromolecular Chemistry, Czechoslovak Academy of Sciences, CS-162 06 Prague, Czechoslovakia;(2) Institute of Physical Chemistry, University, S-75121 Uppsala, Sweden |
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| Abstract: | Summary Measurements of autocorrelation functions extending over a broad time range are reported for a sample of polystyrene in ethyl acetate as a function of temperature between –44°C ( -temperature) and 70°C. The corresponding spectra of decay times are obtained by two mathematical methods. The existence of three dynamic processes is shown and their temperature and angular behaviour is studied. |
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