Inorganic gyroid with exceptionally low refractive index from block copolymer templating.
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Nanoporous polymers with gyroid nanochannels can be fabricated from the self-assembly of degradable block copolymer, polystyrene-b-poly(l-lactide) (PS-PLLA), followed by the hydrolysis of PLLA blocks. A well-defined nanohybrid material with SiO2 gyroid nanostructure in a PS matrix can be obtained using the nanoporous PS as a template for sol-gel reaction. After subsequent UV degradation of the PS matrix, a highly porous inorganic gyroid network remains, yielding a single-component material with an exceptionally low refractive index (as low as 1.1).
author list (cited authors)
Hsueh, H., Chen, H., She, M., Chen, C., Ho, R., Gwo, S., Hasegawa, H., & Thomas, E. L.
complete list of authors
Hsueh, Han-Yu||Chen, Hung-Ying||She, Ming-Shiuan||Chen, Chun-Ku||Ho, Rong-Ming||Gwo, Shangjr||Hasegawa, Hirokazu||Thomas, Edwin L