Biomedical Engineering Reference
In-Depth Information
Fig. 14
ε
s,max
for all four polymers,
with the symbols identical to those in Fig. 13 (
A
). The same plots for PMMA and PtBMA
are shown in (
B
), where the
open symbols
stand for
∆
f
s,c,eq
vs.
f
s,eq
for PEO, PTHF, PMA and PVAc up to
<
2 mN m
-1
Π
and the
filled symbols
>
2 mN m
-1
.The
solid and dashed curves
are the same as in Fig. 4, and the surface
pressure increases counterclockwise, starting from
for
Π
= 0, Limit I, in Fig. 4. PMMA shows
a discontinuous change with can be explained by the coalescence of PMMA patches exist-
ing as a heterogeneous film prior to the monolayer state. Error bars, not shown for clarity,
are 0.5%and5%for
f
s,eq
and
Π
∆
f
s,c,eq
, respectively
