17.25 nm (Fig. 28). Such distance is not compatible with a correlation between
single cylinders but rather of cylinder bundles, as sketched in Fig. 29.
In summary, there is ample evidence for the occurrence of intramolecular phase
separation in cylindrical copolymer brushes. Since the phase separation is restricted
to a length scale of a few nanometers, direct proof is extremely difficult to achieve.
In addition, the computer simulations outlined in Sect. 3.5 will show that statistical
Fig. 26 AFM picture of sample 50PVP47-co-50PMMA44-QBB20 spincast from chloroform
solution onto mica. Scale:2 Â 2 μm
2
. From [94]
Fig. 27 AFM picture of sample 50PVP47-co-50PMMA44-QEB58 spincast from chloroform
solution onto mica. Scale: 2 Â 2 μm
2 . From [94]
Structure Formation of Polymeric Building Blocks: Complex Polymer Architectures
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