Premium
A Deborah number for diffusion in polymer‐solvent systems
Author(s) -
Vrentas J. S.,
Jarzebski C. M.,
Duda J. L.
Publication year - 1975
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690210510
Subject(s) - deborah number , dimensionless quantity , amorphous solid , diffusion , penetrant (biochemical) , sorption , polymer , solvent , thermodynamics , materials science , chemistry , physics , organic chemistry , composite material , adsorption
A Deborah number is introduced as a means of characterizing diffusional transport in amorphous polymer‐solvent systems. Two types of temperature‐penetrant concentration diagrams are constructed, and the various regions on these figures are identified by their Deborah number values. The utility of the diffusion Deborah number is demonstrated by using this dimensionless group to anticipate conditions under which thickness anomalies can be expected in sorption experiments for the atactic polystyrenepentane system.