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CONTROLLING
THE ORIENTATION OF CYLINDER FORMING BLOCK CO-POLYMERS
Block copolymers have been heavily studied because of their self-assembly
characteristics. When heated these copolymers spontaneously form
varying structures, depending on the length of the polymer chain.
My project involves cylinder forming block co-polymers made up of
polystyrene and polyvinyl pyridine. I annealed a 30 nanometers thick
film of this copolymer, floated onto a pattern silicon substrate,
at 180 C for a three day period in order to understand the kinetics
and mechanisms by which these cylinders align themselves with the
pattern on a substrate. The instrument that I use to look at this
sample was the atomic force microscope, which gives a topographical
image of the sample surface. The goal of this research project is
to be able to force the structured formed by these co-polymers to
align themselves with the pattern substrate.
View
final presentation as PDF
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