Direct observation of imhomogeneous structure in cross-linked polymers

• Project/Area Number: 26410138
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Polymer chemistry
• Research Institution: Kyushu University
• Principal Investigator: Kojio Ken 九州大学, 先導物質化学研究所, 准教授 (20346935)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Project Status: Completed (Fiscal Year 2016)
• Budget Amount: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000); Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2014: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
• Keywords: 架橋高分子 / 化学架橋 / 物理架橋 / ポリウレタン / 原子間力顕微鏡 / 小角X線散乱 / 架橋構造 / ミクロ相分離構造 / エポキシ

Outline of Final Research Achievements

Cross-linked polymers have instrinsic properties which can not be replaced by another polymer. However, there are many open-questions on relationship between a network structure and various properties. An inhomogeneous strcucture foromed in cross-linked polymers was directly observed by atomic force microscopy. The inhomogeneous strcture due to difference in cross-linking density was detected.

Research Products

• [Journal Article] Superior properties of polyurethane elastomers synthesized with aliphatic diisocyanate bearing a symmetric structure (2017)
  • Author(s): Nozaki, S.; Masuda, S.; Kamitani, K.; Kojio, K.; Takahara, A.; Kuwamura, G.; Hasegawa, D.; Moorthi, K.; Mita; K., Yamasaki, S.
  • Journal Title: Macromolecules Volume: 50 Issue: 3 Pages: 1008-1015
  • DOI: 10.1021/acs.macromol.6b02044
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Effect of Chain Architecture of Polyol with Secondary Hydroxyl Group on Aggregation Structure and Mechanical Properties of Polyurethane Elastomer (2017)
  • Author(s): Nozaki, S.; Hirai, T.; Higaki, Y.; Kojio, K.; Takahara, A.
  • Journal Title: Polymer Volume: 印刷中 Pages: 423-428
  • DOI: 10.1016/j.polymer.2017.03.031
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] mprovement of the Low-Temperature Property of Aliphatic Polycarbonate Glycols-based Polyurethane Elastomers (2015)
  • Author(s): K. Kojio, M. Furukawa, M. Shimada, M. Shimada, T. Komatsu, S. Nozaki, S. Motokucho, K. Yoshinaga
  • Journal Title: Sci. Adv. Mater. Volume: 7 Issue: 5 Pages: 934-939
  • DOI: 10.1166/sam.2015.1913
  • Peer Reviewed
• [Journal Article] Molecular Aggregation Structure of a Segmented Poly(urethane-urea) Elastomer Derived from an Amino Acid-Based Diisocyanate (2015)
  • Author(s): 檜垣 勇次, 鈴木 研, 小椎尾 謙, 高原 淳
  • Journal Title: KOBUNSHI RONBUNSHU Volume: 72 Issue: 1 Pages: 31-36
  • DOI: 10.1295/koron.2014-0074
  • NAID: 130004793175
  • ISSN: 0386-2186, 1881-5685
  • Peer Reviewed
• [Journal Article] ブロックポリマーの逆ミセルを用いたZnOナノ粒子の合成とZnO/PMMAハイブリッドの作製 (2014)
  • Author(s): 吉永 耕二, 米澤 敦史, 本九町 卓, 小椎尾 謙,
  • Journal Title: 高分子論文集 Volume: 71 Pages: 644-650
  • NAID: 130004793148
  • Peer Reviewed
• [Journal Article] Inclusion of fullerene in polymer chains grafted on silica nanoparticles in an organic solvent (2014)
  • Author(s): Kohji Yoshinaga, Yin Yang, Teruhisa Ohno, Suguru Motokucho and Ken Kojio
  • Journal Title: Polymer Journal Volume: 46 Issue: 9 Pages: 623-627
  • DOI: 10.1038/pj.2014.24
  • Peer Reviewed
• [Journal Article] ポリウレタンエラストマー中のハードセグメント鎖の結晶化挙動 (2014)
  • Author(s): 小椎尾 謙, 松村 隼, 野崎 修平, 本九町 卓, 古川 睦久, 吉永 耕二, 高原 淳
  • Journal Title: 高分子論文集 Volume: 71 Pages: 608-614
  • NAID: 130004705560
  • Peer Reviewed
• [Presentation] 対称構造を有するジイソシアネートを基材としたポリウレタンエラストマーの伸長過程における凝集構造評価 (2017)
  • Author(s): 小椎尾 謙、野崎 修平、高原 淳、三田 一樹、山崎 聡
  • Organizer: 第30回放射光学会年次大会
  • Place of Presentation: 神戸芸術センター
  • Year and Date: 2017-01-07
• [Presentation] Specific molecular aggregation structure and mechanical properties of novel cycloaliphatic diisocyanate-based polyurethane elastomer (2016)
  • Author(s): 1.K. Kojio, S. Masuda, S. Nozaki, A. Takahara, K. Mita, S. Yamasaki
  • Organizer: International Polymer Conference (IPC) 2016
  • Place of Presentation: Fukuoka, Fukuoka international congress center
  • Year and Date: 2016-12-13
  • Int'l Joint Research
• [Presentation] Effects of chemical structure of diisocyanae on a microdomain structure and physical property of polyurethane elastomers (2015)
  • Author(s): Ken Kojio, Shuhei Nozaki, Atsushi Takahara
  • Organizer: Pacifichem 2015
  • Place of Presentation: Honolulu
  • Year and Date: 2015-12-19
  • Int'l Joint Research
• [Presentation] 極性高分子が作り出す凝集構造と物性 (2015)
  • Author(s): K. Kojio
  • Organizer: 第24回高分子材料フォーラム
  • Place of Presentation: 東京
  • Year and Date: 2015-11-25
  • Invited
• [Presentation] Molecular Aggregation Structure Analysis of Polymer Materials Based on Time-Resolved Scattering and Diffraction Measurements with Synchrotron Radiation X-ray (2015)
  • Author(s): K. Kojio
  • Organizer: The 16th RIES-Hokudai International Symposium
  • Place of Presentation: Sapporo
  • Year and Date: 2015-11-10
  • Int'l Joint Research / Invited
• [Presentation] Rheo-optical analysis of polymer materials using a synchrotron radiation x-ray scattering technique (2015)
  • Author(s): K. Kojio
  • Organizer: Japan-Taiwan Bilateral Polymer Symposium 2015
  • Place of Presentation: Sapporo
  • Year and Date: 2015-09-02
  • Int'l Joint Research / Invited
• [Presentation] 種々のジイソシアネートを基材とした架橋ポリウレタンの網目構造の解析 (2014)
  • Author(s): 大池浩貴、吉永 耕二、小椎尾 謙、高原 淳
  • Organizer: 繊維学会
  • Place of Presentation: 延岡
  • Year and Date: 2014-12-19
  • Invited
• [Presentation] 種々のジイソシアネートが架橋ポリウレタンのナノ構造に与える影響 (2014)
  • Author(s): 大池浩貴、吉永 耕二、小椎尾 謙、高原 淳
  • Organizer: 日本ゴム協会
  • Place of Presentation: 豊田
  • Year and Date: 2014-12-04 – 2014-12-05
• [Book] 高分子基礎科学One Point 全10巻 【9】巻 物性I：力学物性 (2014)
  • Author(s): 小椎尾 謙、高原 淳
  • Total Pages: 144
  • Publisher: 共立出版