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WOLFRAM|DEMONSTRATIONS PROJECT

A Model for Monomer and Micellar Concentrations in Surfactant Solutions

​
relative transition half width r
0.1
[​
S
1
​]/cmc
[​
S
m
​]/cmc
This Demonstration shows monomer and micellar concentrations in surfactant solutions. In particular, it shows the effect of the relative transition width
r
on the concentration of monomeric surfactant
[
S
1
]
(blue) and micellized surfactant
[
S
m
]
(red) near the critical micelle concentration (cmc). The horizontal axis represents the relative total surfactant concentration
[S]
0
/cmc
. The vertical dashed line at
[S]
0
/cmc=1
indicates the cmc. The dashed brown curve is a Gaussian function centered at the cmc with half width
r
.
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