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2014 Fiscal Year Final Research Report

Vertical alignment and application of nanoporous silica film by using customized lyotropic liquid crystals

Research Project

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Project/Area Number 25810117
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Organic and hybrid materials
Research InstitutionNagoya University

Principal Investigator

HARA Mitsuo  名古屋大学, 工学(系)研究科(研究院), 助教 (10631971)

Project Period (FY) 2013-04-01 – 2015-03-31
Keywords有機・無機ハイブリッド / メソポーラス / 垂直配向 / リオトロピック液晶 / ゾルゲル法 / 液晶性ポリマー
Outline of Final Research Achievements

An amphiphilic diblock copolymer PMEO-b-PAz, which was consist of a liquid crystalline azobenzene derivative methacrylate and an oligo(ethylene oxide) methacrylate, was synthesized by two-step atom transfer radical polymerization method. PMEO-b-PAz exhibited lyotropic liquid crystallinity in water system. In a spincast film of PMEO-b-PAz hybridized with silica or titania, a lyotropic liquid crystalline lamellar phase of the diblock copolymer aligned spontaneously perpendicular to the substrate plane due to thermal annealing process. We also attained to obtain a nanoporous metal oxide film with vertical alignment by removal of the organic component from the spincast film. Furthermore, the vertically-aligned nanoporous titania film had a potential for an anode of a dye-sensitised solar cell.

Free Research Field

有機・無機ハイブリッド

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Published: 2016-06-03  

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