Large-area Fabrication of Free-Standing Thick Membrane with Microphase-Separated Cylindrical Nanostructure

• Miyatake Mami

  Chemical Resources Laboratory, Tokyo Institute of Technology

• Kimura Taro

  Chemical Resources Laboratory, Tokyo Institute of Technology

• Komiyama Hideaki

  Chemical Resources Laboratory, Tokyo Institute of Technology

• Komura Motonori

  Chemical Resources Laboratory, Tokyo Institute of Technology

• Iyoda Tomokazu

  Chemical Resources Laboratory, Tokyo Institute of Technology

抄録

Block copolymer free-standing membrane with hexagonally packed and penetrated cylinders is fabricated in 5 cm × 5 cm of area and 1.2 µm of thickness by using a sacrificial layer of indium-tin oxide (ITO) layer which can be dissolved with a dilute hydrochloric acid (HCl) solution immediately. Photocross-linkable liquid crystalline block copolymer consisting of poly(ethylene oxide) and liquid crystalline poly(methacrylate) with chalcone mesogens as photocross-linkable unite, PEO-b-PMA(rChal), was utilized in this report since this film affords hexagonally packed and normally aligned PEO cylinders in long range ordering. Photocross-linking in chalcone mesogens and dissolution process of the sacrificial layer using aqueous solution play the dominant role in the large-area fabrication of the free-standing membrane without any defects. The orientation of PEO cylinders in the membrane with ～0.8-17 µm thickness was investigated based on GISAXS measurement. The perpendicularly oriented PEO cylinders were observed in the membrane with up to 1.2 µm of thickness

収録刊行物

• Transactions of the Materials Research Society of Japan

  Transactions of the Materials Research Society of Japan 37 (3), 409-412, 2012

  一般社団法人 日本MRS

キーワード

• Free-standing membrane
• Photo-crosslinkable block copolymer
• Microphase-separation

詳細情報

• CRID: 1390282680490182400
• NII論文ID: 130004676415
• DOI: 10.14723/tmrsj.37.409
• COI: 1:CAS:528:DC%2BC38XhslSksrjL
• ISSN: 21881650
• ISSN: 13823469
• Web Site: https://www.jstage.jst.go.jp/article/tmrsj/37/3/37_409/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可