Measurements of the surface self-diffusion coefficients of glass-forming small molecules, indomethacin (IMC), nifedipine (NIF),2 and o-terphenyl (OTP),3 by Yu and coworkers using the method of surface grating decay have found exceedingly large enhancement of molecular mobility at the surface. The decay of surface grating in all three molecules occurs by viscous flow at high temperatures, but by surface diffusion at lower temperatures starting at about 10 deg above Tg.

Surface diffusion of polymer glasses redux

CAPACCIOLI, SIMONE
2016

Abstract

Measurements of the surface self-diffusion coefficients of glass-forming small molecules, indomethacin (IMC), nifedipine (NIF),2 and o-terphenyl (OTP),3 by Yu and coworkers using the method of surface grating decay have found exceedingly large enhancement of molecular mobility at the surface. The decay of surface grating in all three molecules occurs by viscous flow at high temperatures, but by surface diffusion at lower temperatures starting at about 10 deg above Tg.
Ngai, K. L; Capaccioli, Simone
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11568/843751
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