Abstract
The general problem of polymer-polymer interdiffusion is studied and used to illustrate several unique aspects of the orientation and motion of macromolecules at interfaces. Specific new results are obtained for the short time evolution of the interfacial concentration profile which is shown, following the reptation model, to follow a nonclassical power law, namely, for short times \(\int\limits_{ - \infty }^\infty {C(z,t)dz \sim t^{3/4} }\), instead of the usual t1/2 law. A fluorescence experiment to measure this behavior is analyzed.
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Tirrell, M., Adolf, D., Prager, S. (1984). Orientation and motion at a polymer-polymer interface: Interdiffusion of fluorescent-labelled macromolecules. In: Ericksen, J.L. (eds) Orienting Polymers. Lecture Notes in Mathematics, vol 1063. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0072151
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DOI: https://doi.org/10.1007/BFb0072151
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