Giant Zincblende Structures Formed by an ABC Star-Shaped Terpolymer/Homopolymer Blend System

Kenichi Hayashida, Atsushi Takano, Tomonari Dotera, and Yushu Matsushita

Macromolecules, 41 (17), 6269-6271 (Communication to the Editor), 2008.
Supporting information

We have found a giant zincblende structure with a 45 nm lattice constant in an ABC star polymer / homopolymer blend system. Alternating four-coordinate cellular domains of components A and B form a diamond lattice by using space-division property of ABC star polymers.Transmission electron micrographs reveal spherical domains of A and B with space-filling component C, and small-angle X-ray scattering confirms the corresponding F_bar{4}3m space group symmetry. The present result opens a new way to construct mesoscale non-close-packed lattices, which have a relevance to photonic applications.