Summary: Additions and Corrections
Effective Spring Constant of Bubbles and Droplets
Phil Attard and Stan J. Miklavcic Langmuir 2001, 17,
8217-8223.
In our previous analysis of bubble and droplet defor-
mation,1
an algebraic error occurred. The quantity d that
first appears in eq 30 should be defined as
Consequently, the change in the radius of curvature, eq
33, should be
which is negative and agrees with that subsequently given
by Bardos.2
The deformed profile near the dimple rim, eq
34, should be
With the intervening equations unchanged, the deformed
profile at the apex, eq 51, becomes
and the effective spring constant of the bubble or droplet,
eq 52, is given by
This result for the interfacial spring constant should also
replace that given in ref 3, but the algorithm for analyzing

Source: Attard, Phil - School of Chemistry, University of Sydney

Collections: Chemistry