Status: Senior Thesis Student
Adding homopolymer to diblock copolymers provides an efficient lever to tune the wide range of potential material morphologies. My research is concerned with the effect of the homopolymer:copolymer blend ratio on the resulting structure of block copolymers in thin films. Rather than studying discrete blend ratios, I am working with a flowcoater to apply a high throughput technique. Creating a continuous composition gradient allows the consideration of any particular blend ratio that falls within the range covered. This is particularly beneficial at phase boundaries where a distinct transition point may be hard to distinguish but transition in structure is especially interesting. My research is focused specifically onpoly(styrene)-poly(ethylene-alt-propylene) copolymers blended with polystyrene homopolymers.