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Frank-Kasper-like network phase from self-assembly of high-χ star-block copolymers.
Chang, Cheng-Yen; Manesi, Gkreti-Maria; Wang, Wei-En; Hung, Yu-Chueh; Avgeropoulos, Apostolos; Ho, Rong-Ming.
Afiliación
  • Chang CY; Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C.
  • Manesi GM; Department of Materials Science Engineering, University of Ioannina, University Campus, Ioannina 45110, Greece.
  • Wang WE; Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C.
  • Hung YC; Institute of Photonics Technologies, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C.
  • Avgeropoulos A; Department of Materials Science Engineering, University of Ioannina, University Campus, Ioannina 45110, Greece.
  • Ho RM; Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan, R.O.C.
Sci Adv ; 10(24): eado4786, 2024 Jun 14.
Article en En | MEDLINE | ID: mdl-38875328
ABSTRACT
By taking advantage of the effects of solvent selectivity and topology on high-χ block copolymer (BCP) for self-assembly, network phases with high packing frustration can be formed in self-assembled polystyrene-b-polydimethylsiloxane (PS-b-PDMS). Apart from gyroid with trigonal structure and diamond with tetrahedral structure, a peculiar network phase with space group of [Formula see text] (Frank-Kasper structure) can be found in six-arm star-block PS-b-PDMS as evidenced by small-angle x-ray scattering. Electron tomography results reveal the network phase with alternating connection of three and four struts. The observed phase behaviors suggest that the network formation is built from the bisectors of dispersive spheres in the Frank-Kasper phase, instead of building connections among them, and thus decipher the origins of complex phase formation due to the adaptive character of malleable mesoatoms.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Sci Adv Año: 2024 Tipo del documento: Article Pais de publicación: Estados Unidos