Scale invariance of the density fluctuations in films and macromolecular aggregates in poly(styrene) solutions |
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Authors: | D. V. Novikov A. N. Krasovskiĭ N. A. Osmolovskaya V. I. Efremov |
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Affiliation: | (1) Bonch-Bruevich State University of Telecommunications, ul. Moĭka 61, St. Petersburg, 191186, Russia;(2) St. Petersburg State University of Cinema and Television, ul. Pravdy 13, St. Petersburg, 191119, Russia |
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Abstract: | The specific features of the transformation of a polymer solution into a solid state (film) of an amorphous polymer are investigated using electron microscopy. The correspondence between the characteristics of fractal macromolecular aggregates in a solution and the parameters of the spatial distribution of density fluctuations at the surface of the film is established using a linear atactic poly(styrene) as an example. The correspondence exists under the condition that the packing density of coils does not exceed a critical value at the liquid-solid phase transition point and the polymer concentration in the solution provides the formation of a continuous network of entangled macromolecules. |
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