Abstract
Interdiffusion at polymer-polymer interfaces is analyzed using the reptation model proposed by P.-G. de Gennes for the dynamics of linear polymer melts. Correlated motion effects unique to the reptation model are explored by computer simulation and analysis of concentration profiles of symmetric amorphous interfaces at times less than the reptation time, T r and diffusion depths less than random coil diameter. Results are compared with the scaling laws for interdiffusion given by H(t)/H ∞ ≈ (t/T r )r /4, where r = 1, 2, 3. The diffusion front of the highly ramified interface was analyzed on a square latice. The front was found to have fractal characteristics for t > T r but was not fractal for t < T r . A fractal diffusion front for a polymer/melt interface (polyimide/Ag) is demonstrated.
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© 1989 Plenum Press, New York
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Wool, R.P. (1989). Dynamics and Fractal Structure of Polymer Interfaces. In: Lee, LH. (eds) New Trends in Physics and Physucal Chemistry of Polymers. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0543-9_11
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DOI: https://doi.org/10.1007/978-1-4613-0543-9_11
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4612-7858-0
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