Controlling nucleation behavior and the subsequent phase transition in segmented flow

• Project/Area Number: 26289291
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Properties in chemical engineering process/Transfer operation/Unit operation
• Research Institution: Okayama University
• Principal Investigator: Ono Tsutomu 岡山大学, 自然科学研究科, 教授 (30304752)
• Co-Investigator(Renkei-kenkyūsha): WATANABE Takaichi 岡山大学, 大学院自然科学研究科, 助教 (60743979)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥16,120,000 (Direct Cost: ¥12,400,000、Indirect Cost: ¥3,720,000); Fiscal Year 2016: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2015: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2014: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
• Keywords: 核生成 / セグメント空間 / マイクロ流体工学 / 乳化重合 / 晶析 / 相転移 / 相分離 / スラグ流 / 高分子重合 / ソープフリー重合 / 液液界面 / 中空構造 / 液滴 / 微粒子 / 単分散液滴 / 無乳化重合 / 高分子微粒子

Outline of Final Research Achievements

Nucleation behavior in segmented flow such as droplets and slug flow was investigated from the viewpoints of crystallization and soap-free emulsion polymerization. Nucleation analysis using microfluidic crystallization realized the measurement of nucleation rate. In soap-free emulsion polymerization using microchannels, we found the new polymerization behavior containing fast mass transfer and controlled nucleation. These findings are promising to improve the efficient production tool and the materials design.

Research Products

• [Int'l Joint Research] ストラスブール大学/CNRS(フランス)
• [Int'l Joint Research] インペリアル・カレッジ(英国)
• [Journal Article] Metal-coated microcapsules with tunable magnetic properties synthesized via electroless plating (2017)
  • Author(s): Toshihiko Tsuneyoshi, Tsutomu Ono
  • Journal Title: Mater. Sci. Eng. B Volume: 222 Pages: 49-54
  • DOI: 10.1016/j.mseb.2017.04.009
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] マイクロ流路内のスラグ流を利用した無乳化重合による微粒子調製 (2014)
  • Author(s): 小野努
  • Journal Title: 化学工学 Volume: 78 Pages: 477-479
• [Presentation] マイクロ流路内での異相界面形成と分離への応用 (2016)
  • Author(s): 小野努
  • Organizer: 第36回キャピラリー電気泳動シンポジウム
  • Place of Presentation: 徳島
  • Year and Date: 2016-11-09
  • Invited
• [Presentation] Water-in-Oilスラグ流を反応場とした無乳化重合における重合挙動 (2016)
  • Author(s): 田原晃樹, 渡邉貴一, 小野努
  • Organizer: 第19回高分子ミクロスフェア討論会
  • Place of Presentation: 千葉
  • Year and Date: 2016-11-07
• [Presentation] Preparation of polymer fibers with controlled internal structures using microfluidic-wet spinning (2016)
  • Author(s): Shohei Toyota, Takaichi Watanabe, Tsutomu Ono
  • Organizer: The 12th Japan-Korea Symposium on Materials & Interfaces
  • Place of Presentation: 御殿場
  • Year and Date: 2016-11-02
  • Int'l Joint Research
• [Presentation] Preparation of metal thin film by electroless plating using liquid-liquid interface (2016)
  • Author(s): Yu Yohaze, Takaichi Watanabe, Tsutomu Ono
  • Organizer: The 12th Japan-Korea Symposium on Materials & Interfaces
  • Place of Presentation: 御殿場
  • Year and Date: 2016-11-02
  • Int'l Joint Research
• [Presentation] Synthesis of polymer particles with high-molecular weight using emulsion polymerization in water-in-oil slug flow (2016)
  • Author(s): Koki Tawara, Takaichi Watanabe, Tsutomu Ono
  • Organizer: The 14th International Conference on MicroREaction Technology (IMRET14)
  • Place of Presentation: 北京（中国）
  • Year and Date: 2016-09-11
  • Int'l Joint Research
• [Presentation] Nanofibers with controlled internal structures prepared by microfluidic-wet spinning (2016)
  • Author(s): Shohei Toyota, Takaichi Watanabe, Tsutomu Ono
  • Organizer: The 14th International Conference on MicroREaction Technology (IMRET14)
  • Place of Presentation: 北京（中国）
  • Year and Date: 2016-09-11
  • Int'l Joint Research
• [Presentation] 液液界面を利用した無電解めっき反応による金属薄膜調製 (2016)
  • Author(s): 與羽瀬佑, 恒吉俊彦, 渡邉貴一, 小野努
  • Organizer: 化学工学会第48回秋季大会
  • Place of Presentation: 徳島
  • Year and Date: 2016-09-06
• [Presentation] マイクロ湿式紡糸プロセスの特性を生かしたナノファイバー内部構造の制御 (2016)
  • Author(s): 豊田翔平, 渡邉貴一, 小野努
  • Organizer: 日本繊維機械学会第69回年次大会
  • Place of Presentation: 大阪
  • Year and Date: 2016-06-03
• [Presentation] Study of droplet formation in a coaxial microfluidic device (2015)
  • Author(s): Tsutomu Ono, Junya Masuda
  • Organizer: Microfluidics: from laboratory tools to process development
  • Place of Presentation: IFP Energies nouvelles（Rueil-Malmaison）
  • Year and Date: 2015-11-04
  • Int'l Joint Research
• [Presentation] Preparation of Fine Particles and fibers using a microfluidic device (2015)
  • Author(s): Tsutomu Ono, Yuya Kondo, Takaichi Watanabe
  • Organizer: Microfluidics: from laboratory tools to process development
  • Place of Presentation: IFP Energies nouvelles（Rueil-Malmaison）
  • Year and Date: 2015-11-04
  • Int'l Joint Research
• [Presentation] Crystal Growth In Droplet-based Microfluidic Crystallization (2015)
  • Author(s): Tsutomu Ono
  • Organizer: APCChE Congress 2015
  • Place of Presentation: Melbourne Convention andExhibition Centre (MCEC),Victoria, Australia
  • Year and Date: 2015-09-30
  • Int'l Joint Research
• [Presentation] Controlled colloidal materials production using microfluidic droplet-to-particle technology (2015)
  • Author(s): Tsutomu Ono, Takaichi Watanabe
  • Organizer: 5th International Colloids Conference
  • Place of Presentation: Amsterdam Grand Hotel Krasnapolsky
  • Year and Date: 2015-06-23
  • Int'l Joint Research
• [Presentation] Emulsion polymerization using a water-in-oil slug flow in a microreactor (2014)
  • Author(s): Tsutomu Ono, Takuya Soga
  • Organizer: Frontiers of Polymer Colloids 2014
  • Place of Presentation: Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic
  • Year and Date: 2014-07-20 – 2014-07-24