Development of dynamic hybrid materials comprising inorganic nanorods and liquid crystalline polymers

• Project/Area Number: 26790009
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nanomaterials chemistry
• Research Institution: National Institute for Materials Science (2015-2016); Tohoku University (2014)
• Principal Investigator: KUBO Shoichi 国立研究開発法人物質・材料研究機構, 機能性材料研究拠点, 主任研究員 (20514863)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
• Keywords: ナノ材料 / ネマチック液晶 / 高分子 / 高分子合成

Outline of Final Research Achievements

Liquid crystalline (LC) polymer materials were designed to realize the effective control of their organized structures for dynamic alignment of inorganic nanorods. It was revealed that the introduction of non-LC alkyl side-chains into nematic LC polymers promotes the interaction of functional small molecules with side-chain LC mesogens by improving the affinity of the molecules with the LC polymers. It was also demonstrated that the photo-responsive behaviors of the side-chain mesogens in sub-100nm-thick thin films could be promoted by the assistance of small LC molecules. The results led to the underlying technologies of the dynamic alignment control of inorganic nanorods.

Research Products

• [Journal Article] Unimodal nematic liquid crystalline random copolymers designed for accepting chiral dopants (2017)
  • Author(s): Takumi Sodemura, Shoichi Kubo, Hiroki Higuchi, Hirotsugu Kikuchi, and Masaru Nakagawa
  • Journal Title: Bulletin of the Chemical Society of Japan Volume: 90 Issue: 2 Pages: 216-222
  • DOI: 10.1246/bcsj.20160343
  • NAID: 130005332370
  • Peer Reviewed
• [Presentation] 液晶材料の協調的相互作用による無機ナノロッド材料の一軸配向 (2016)
  • Author(s): 久保祥一
  • Organizer: グリーンプロセスインキュベーションコンソーシアム(GIC)28年度第49回研修セミナー
  • Place of Presentation: 産業技術総合研究所東北センター（宮城県・仙台市）
  • Year and Date: 2016-12-09
  • Invited
• [Presentation] Phot-induced reorientation of mesogens of nematic liquid crystalline polymers by photo-Fries rearrangement at polymer/substrate interface (2016)
  • Author(s): Mari Kumagai, Shoichi Kubo, Nobuhiro Kawatsuki, Masaru Nakagawa
  • Organizer: 2nd International Conference on Photoalignment & Photopatterning
  • Place of Presentation: 名古屋大学（愛知県・名古屋市）
  • Year and Date: 2016-11-25
  • Int'l Joint Research
• [Presentation] Unidirectional orientation of nanostructures comprising nematic liquid crystalline polymers (2016)
  • Author(s): Shoichi Kubo, Masaru Nakagawa
  • Organizer: 2nd International Conference on Photoalignment & Photopatterning
  • Place of Presentation: 名古屋大学（愛知県・名古屋市）
  • Year and Date: 2016-11-24
  • Int'l Joint Research
• [Presentation] 膜厚サブ50 nmのネマチック液晶高分子薄膜での光Fries転位によるメソゲンの光配向挙動 (2016)
  • Author(s): 熊谷真莉，久保祥一，川月喜弘，中川勝
  • Organizer: 第65回高分子学会年次大会
  • Place of Presentation: 神戸国際会議場・展示場（兵庫県・神戸市）
  • Year and Date: 2016-05-26
• [Presentation] 光Fries転位型ネマチック液晶共重合体の合成と薄膜での光配向挙動 (2016)
  • Author(s): 熊谷真莉，久保祥一，川月喜弘，中川勝
  • Organizer: 2015年度高分子・ハイブリッド材料研究センター（PHyM）若手フォーラム
  • Place of Presentation: 東北大学（宮城県仙台市）
  • Year and Date: 2016-03-04
• [Presentation] 汎用液晶配向法による無機ナノロッドの水平・一軸配向技術 (2016)
  • Author(s): 久保祥一
  • Organizer: SATテクノロジー・ショーケース2016
  • Place of Presentation: つくば国際会議場（茨城県つくば市）
  • Year and Date: 2016-02-04
• [Presentation] Liquid crystalline properties and photochemical behaviors of amphiphilic nematic liquid crystalline diblock copolymers containing photocrosslinkable mesogens (2015)
  • Author(s): Shoichi Kubo, Sho Kobayashi, Nobuhiro Kawatsuki, Masaru Nakagawa
  • Organizer: Pacifichem2015
  • Place of Presentation: Hawaii Convention Center,Honolulu (USA)
  • Year and Date: 2015-12-15
  • Int'l Joint Research
• [Presentation] Micro/nano fabrication by utilizing grafted polymer layers (2015)
  • Author(s): Shoichi Kubo
  • Organizer: Tsukuba nanoMA2015:Nanomaterials and Nanoarchitectures
  • Place of Presentation: つくば国際会議場（茨城県つくば市）
  • Year and Date: 2015-07-15
  • Int'l Joint Research
• [Presentation] 非液晶性部位をランダムに導入した単峰性ネマチック液晶高分子対するキラル分子の相溶性 (2015)
  • Author(s): 袖村巧，久保祥一，樋口博紀，菊池裕嗣，中川勝
  • Organizer: 第64回高分子学会年次大会
  • Place of Presentation: 札幌コンベンションセンター（北海道札幌市）
  • Year and Date: 2015-05-27
• [Presentation] 単峰性ネマチック液晶高分子へのキラル添加剤の相溶性 (2014)
  • Author(s): 袖村巧，久保祥一，樋口博紀，菊池裕嗣，中川勝
  • Organizer: 第24回日本MRS年次大会
  • Place of Presentation: 横浜市
  • Year and Date: 2014-12-10
• [Presentation] Liquid crystalline property of a unimodal nematic liquid crystalline polymer with a chiral dopant (2014)
  • Author(s): Takumi Sodemura, Shoichi Kubo, Hiroki Higuchi, Hirotsugu Kikuchi, Masaru Nakagawa
  • Organizer: International Symposium on Integrated Molecular/Materials Science and Engineering
  • Place of Presentation: Nanjing, China
  • Year and Date: 2014-11-02