The reaction between atactic poly(2-vinylpyridine) and 1,4-dibromobutane
leads to formation of long-range 3D molecular ordering in polymer
chains mainly because the side group (pyridine) of the polymer chain
changes to a syndotactic configuration.
The high voltage electron microscope image is also shown, the dark and
gray areas are attributed to regions of high and low electron density,
They also made micells using P2VP-b-poly(n-hexyl isocyanate) in
methanol/THF solution and add 1,4-dibromobutane to crosslink the shell.