A material and an associated method of formation. A self-assembling block copolymer that includes a first block species and a second block species respectively characterized by a volume fraction of F.sub.1 and F.sub.2 with respect to the self-assembling block copolymer is provided. At least one crosslinkable polymer that is miscible with the second block species is provided. The self-assembling block copolymer and the at least one crosslinkable polymer are combined to form a mixture. The mixture having a volume fraction, F.sub.3, of the crosslinkable polymer, a volume fraction, F.sub.1A, of the first block species, and a volume fraction, F.sub.2A, of the second block species is formed. A material having a predefined morphology where the sum of F.sub.2A and F.sub.3 were preselected is formed.