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A density functional theory of chiral block copolymer melts
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10.1063/1.4802963
/content/aip/journal/jcp/138/19/10.1063/1.4802963
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/19/10.1063/1.4802963
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

An A*B copolymer chain and its labels.

Image of FIG. 2.
FIG. 2.

A shift in the spinodal point between the SOP and VSOP model (α = 0.0001), where Δχ is the difference in the spinodal point between the VSOP and the SOP models. Here, we use = 600, = 0.1 and the behavior is rather insensitive to the change in α under the α ≪ Γ limit.

Image of FIG. 3.
FIG. 3.

The metastable H* phase. The distance between the centers of the two neighboring cylinders is 4.7 . In this figure, the cylinders are plotted with the isosurface ψ = 0.65. The helical amplitude and the pitch of helical cylinders are 0.5 and 8.5 , respectively.

Image of FIG. 4.
FIG. 4.

The chiral interaction free energy density. The white circular curves are the A*-B interface (ψ = 0 isosurface). The superimposed gray plot indicates the chiral interaction free energy density in the H* structure. The dark region shows the strong chiral interaction near the A*-B interfaces.

Image of FIG. 5.
FIG. 5.

The chain alignment strength. The interface ψ = 0 is at = 1.47 .

Image of FIG. 6.
FIG. 6.

The angle between the chain alignment and the axis. The interface ψ = 0 is at = 1.47 .

Image of FIG. 7.
FIG. 7.

The zigzag H* phase. The cylinders have right-handed helical shape and sharp turns in a zigzag manner. The distance between the centers of the two neighboring cylinders is 4.5 . The zigzag structure has a longer pitch = 12.7 , while the cylinder also has a shorter chiral helical pitch * = 8 . Note that the period of the zigzag undulation is just as twice as the helical pitch.

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/content/aip/journal/jcp/138/19/10.1063/1.4802963
2013-05-15
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: A density functional theory of chiral block copolymer melts
http://aip.metastore.ingenta.com/content/aip/journal/jcp/138/19/10.1063/1.4802963
10.1063/1.4802963
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