Biomedical Engineering Reference
In-Depth Information
ε
s
-
A
for PXcMA polymers on 0.01 MHClat25
◦
C,
both in a double logarithmic plot.
Squares
are for PHcMA,
diamonds
for POcMA,
trian-
gles
for PDcMA, and
circles
for PODcMA.
Open symbols
areusedforthediluteregime
(
Fig. 22
(
a
)
Π
-
A
Isotherms and (
b
)
1 mN m
-1
)and
filled symbols
for the semi-dilute regime (
>
1 mN m
-1
)
Π
≤
Π
>
1 mN m
-1
(filled symbols). The
critical scaling exponent y in Eq. 39 for PHcMA is 6, while y for the others
is about 20. This suggests that all three monolayers of POcMA, PDcMA and
PODcMA, are placed in a poor solvent environment, whereas PHcMA is in
a slightly better solvent, but is not at the good solvent limit. The static elas-
bols)andthesemi-diluteregimewhere
Π
