Facile Fabrication of Nanocellular Block Copolymer Thin Films Using Supercritical Carbon Dioxide | Zendy

Li L. | Zendy; Yokoyama H. | Zendy; Nemoto T. | Zendy; Sugiyama K. | Zendy

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Facile Fabrication of Nanocellular Block Copolymer Thin Films Using Supercritical Carbon Dioxide

Author(s) -

Li L.,

Yokoyama H.,

Nemoto T.,

Sugiyama K.

Publication year - 2004

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.200400264

Subject(s) - materials science , supercritical carbon dioxide , copolymer , supercritical fluid , fabrication , chemical engineering , thin film , carbon dioxide , saturation (graph theory) , nanotechnology , organic chemistry , composite material , polymer , chemistry , medicine , alternative medicine , mathematics , pathology , combinatorics , engineering

A novel, facile, and reproducible method of fabricating nanocells in thin films (see Figure) has been developed using a fluorinated block copolymer with a supercritical carbon dioxide (scCO 2 ) soluble block as a template. The nanocells have an average spacing of 34 nm and a number density of 9 × 10 10 cm –2 . The size of nanocellular structures is readily tunable by changing the saturation pressure of scCO 2 .

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