The good, the bad, and the poly: Amphiphilic poly(methyl methacrylate)-block-poly(ethylene oxide) can be used as a template to give anatase TiO2 films with stable nanovesicle morphology (see image). The process couples a good/poor solvent-pair-induced phase-separation process and sol–gel chemistry. The multilayer titania–block-copolymer composite film has an ordered structure over a large length scale parallel to the substrate, both before and after calcination (as revealed by the grazing-incidence small-angle X-ray scattering image shown in the inset).
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Cheng et al. (2007) studied this question.
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