Alternating Double-Gyroid

Fig. 18 Phase space of PI-fc-PS-fc-PEO in vicinity of ODT. Filled and open circles-. ordered and disordered states, respectively, within experimental temperature range 100 < T/° C< 225. Outlined areas compositions with two- and three-domain lamellae (identified by sketches) shaded regions three network phases, core-shell double gyroid (Q230), orthorhombic (O70), and alternating gyroid (Q214). Overlap of latter two phase boundaries indicates high- and low-temperature occurrence, respectively, of each phase. Dashed line condition tfin = 0peo associated with symmetric PI-fc-PS-fc-PEO molecules. From [75]. Copyright 2004 American Chemical Society...

Fig.20 Top row single unit-cell models of core-shell double gyroid (Q °), orthorhombic (O °), and alternating gyroid (Q ) cross-sectioned to reveal interfacial configuration. Bottom row. direct projections of cross-sectioned interfaces. Sketches of PI-fi-PS-fi-PEO chains show how each morphology is assembled. Projections appear to scale that is, the core-shell double gyroid unit cell is roughly twice the thickness of the other two. From [75]. Copyright 2004 American Chemical Society...

Fig. 11 Routes to three-dimensionally co-continuous metamaterials with (a) double gyroid, (b) hollow double gyroid, and (c) alternating gyroid structures (reprinted with permission from [15] Copyright 2009 Wiley-VCH)...

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