Development of novel living radical polymerization by using bulky hyperbranched polymer

• Project/Area Number: 26810073
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Polymer chemistry
• Research Institution: Kanagawa University
• Principal Investigator: Ohta Yoshihiro 神奈川大学, 工学部, 助教 (90625617)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: ハイパーブランチポリマー / リビングラジカル重合 / 連鎖縮合重合 / グラフトポリマー

Outline of Final Research Achievements

Radical polymerization of macromonomer containing well-defined hyperbranched polyamide (HBPA), which was synthesized by chain-growth condensation polymerization of AB2 monomer, followed by modification of the focal point, was studied. During this research period, we have revealed that graft polymer with high molecular weight and low polydispersity was obtained when the polymerization with 2,2'-azobis(4-methoxy-2.4-dimethylvaleronitrile) at 30 ℃.

Research Products

• [Presentation] Radical polymerization of macromonomers bearing well-defined hyperbranched polyamide: effect of degree of polymerization and N-alkyl group of hyperbranched polyamide (2015)
  • Author(s): Shintarou Narumi, Jun Matsuda, Yoshihiro Ohta, Tsutomu Yokozawa
  • Organizer: 14th Pacific Polymer Conference 14 (PPC14)
  • Place of Presentation: Kauai, Hawaii
  • Year and Date: 2015-12-09
  • Int'l Joint Research
• [Presentation] N-アルキル基が異なるハイパーブランチポリアミドマクロモノマーのラジカル重合挙動 (2015)
  • Author(s): 鳴海 慎太朗, 松田 潤, 太田 佳宏, 横澤 勉
  • Organizer: 第 64 回高分子討論会
  • Place of Presentation: 東北大学、宮城
  • Year and Date: 2015-09-15
• [Presentation] Radical polymerization of macromonomers with well-defined hyperbranched polyamide and with linear polyamide (2015)
  • Author(s): Shintarou Narumi, Hiroto Yamaguchi, Jun Matsuda, Yoshihiro Ohta, Tsutomu Yokozawa
  • Organizer: European Polymer Congress 2015 (epf DRESDEN 2015)
  • Place of Presentation: Dresden, Germany
  • Year and Date: 2015-06-21
  • Int'l Joint Research
• [Presentation] 分子量と分子量分布の制御されたハイパーブランチポリアミドマクロモノマーとリニアポリアミドマクロモノマーのラジカル重合の相違 (2015)
  • Author(s): 鳴海 慎太朗, 山口 寛人, 松田 潤, 太田 佳宏, 横澤 勉
  • 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
  • Year and Date: 2015-05-27
• [Presentation] Synthesis of defect-free, hyperbranched graft polymers via graft-through method by radical polymerization (2015)
  • Author(s): Yoshihiro Ohta, Jun Matsuda, Shintarou Narumi, Hiroto Yamaguchi, Tsutomu Yokozawa
  • Organizer: Fourth International Symposium Frontiers in Polymer Science
  • Place of Presentation: Riva del Garda, Italy
  • Year and Date: 2015-05-20
  • Int'l Joint Research
• [Presentation] Synthesis of Defect-Free, High-Molecular-Weight, Graft Polymer Bearing Well-Defined Hyperbranched Polyamide Side Chains by Means of ‘‘Grafting Through’’ Method (2014)
  • Author(s): Yoshihiro Ohta, Jun Matsuda, Tsutomu Yokozawa
  • Organizer: Korea-Japan Joint Polymer Symposium 2014 ‘‘Functional Macromolecules’’
  • Place of Presentation: KAIST, Korea
  • Year and Date: 2014-10-29 – 2014-10-31
• [Presentation] Synthesis of Defect-Free Graft Polymer with Well-Defined Hyperbranched Polyamide Side Chains via ‘‘Grafting Through’’ Approach (2014)
  • Author(s): Jun Matsuda, Yoshihiro Ohta, Tsutomu Yokozawa
  • Organizer: Polycondensation 2014
  • Place of Presentation: Tokyo Institute of Technology, Japan
  • Year and Date: 2014-09-08 – 2014-09-11
• [Presentation] Synthesis of Defect-Free, High-Molecular-Weight, Graft Polymer with Narrow Molecular Weight Distribution by Radical Polymerization of Well-Defined Hyperbranched Polyamide Macromonomer (2014)
  • Author(s): Yoshihiro Ohta, Jun Matsuda, Tsutomu Yokozawa
  • Organizer: NIMS CONFERENCE 2014 A Strong Future from Soft Materials
  • Place of Presentation: Tsukuba International Congress Center, Japan
  • Year and Date: 2014-07-01 – 2014-07-03
• [Presentation] 分子量と分子量分布の制御されたハイパーブランチポリアミドマクロモノマーのラジカル重合挙動 (2014)
  • Author(s): 松田 潤、太田佳宏、横澤 勉
  • Organizer: 第 63 回高分子学会年次大会
  • Place of Presentation: 名古屋国際会議場
  • Year and Date: 2014-05-28 – 2014-05-30
• [Presentation] SYNTHESIS OF DEFECT-FREE GRAFT POLYMER WITH LOW POLYDISPERSITY BY RADICAL POLYMERIZATION OF WELL-DEFIED HYPERBRANCHED POLYAMIDE MACROMONOMER (2014)
  • Author(s): Jun Matsuda, Yoshihiro Ohta, Tsutomu Yokozawa
  • Organizer: 3rd INTERNATIONAL SYMPOSIUM ON CONTROLLED/LIVING POLYMERIZATION FROM SYNTHESIS TO APPLICATION
  • Place of Presentation: Antalya, Turkey
  • Year and Date: 2014-05-01 – 2014-05-04