Helical nanostructures via self-assembly are of interest for a variety of applications in the life and physical sciences. To date efforts to realize helical superstructures in block copolymers have focused on the use of a chiral monomers to incorporate chiral blocks directly into the main chain. In IRG 1, Watkins has demonstrated a simpler and more versatile approach that employs a small molecule chiral additive to drive the formation of helical morphologies in otherwise achiral block copolymer systems