Migration of liquid polymers on solid surfaces
- 1 March 1990
- journal article
- conference paper
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 92 (5) , 3189-3196
- https://doi.org/10.1063/1.457916
Abstract
Migration of very thin (Ds increases as the film thickness decreases down to 1 nm, however, below 1 nm, Ds becomes independent of polymer film thickness. The functional dependence of Ds with molecular weight M is described, over the limited range of M in the unentangled regime, by M−1.7 The activation energy for polymer segment hopping is about 41 kJ/mol, which is similar to values obtained from bulk self‐diffusion of other polymers.Keywords
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