Detailed analysis of visco-plastic behavior of polymers by using polarization imaging

• Project/Area Number: 24350120
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Polymer/Textile materials
• Research Institution: Osaka University
• Principal Investigator: INOUE Tadashi 大阪大学, 理学(系)研究科(研究院), 教授 (80201937)
• Co-Investigator(Kenkyū-buntansha): URAKAWA Osamu 大阪大学, 大学院理学研究科, 講師 (70273539) ; 四方 俊幸 大阪大学, 理学研究科, 准教授 (10178858)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2012: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
• Keywords: 二軸伸長 / 粘塑性 / 偏光イメージング / ひずみエネルギー / 応力光学則 / 修正応力光学則 / ひずみエネルギー関数 / 粘塑性体 / 複屈折 / 粘弾性 / 無定形高分子 / 屈折率テンソル

Outline of Final Research Achievements

Detailed analysis of biaxial stretching properties of visco-plastic polymers such as amorphous polymers around the glass transition temperature or inhomogeneous thermos-plastic polymers was performed by using a newly developed biaxial stretching apparatus combined with a polarizing imaging camera. A new phenomenological strain energy theory introducing dissipative terms for plastic behavior well described the biaxial stretching properties the polymers. The theory also well described with birefringence development during the stretching.

Research Products

• [Journal Article] Viscoelastic properties and birefringence of phenolic resins (2014)
  • Author(s): Satoshi Maji, Osamu Urakawa, Tadashi Inoue
  • Journal Title: Polymer Journal Volume: 46 Issue: 5 Pages: 272-276
  • DOI: 10.1038/pj.2013.97
  • NAID: 40020051367
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Structure and Viscoelasticity of Novolac Resins (2014)
  • Author(s): Satoshi Maji, Osamu Urakawa, Tadashi Inoue
  • Journal Title: Polymer Journal Volume: 46 Issue: 9 Pages: 584-591
  • DOI: 10.1038/pj.2014.27
  • NAID: 40020178573
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Detailed Analysis of Sub-Rouse Mode Observed in Polymerized Ionic Liquids with Dynamic Birefringence Measurements (2014)
  • Author(s): Atsushi Matsumoto, Tadashi Inoue
  • Journal Title: Nihon Reoroji Gakkaishi Volume: 42 Issue: 4 Pages: 227-233
  • DOI: 10.1678/rheology.42.227
  • NAID: 130004693960
  • ISSN: 0387-1533, 2186-4586
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Dynamic Rigidity of Cellulose Derivatives in Melts (2014)
  • Author(s): Ayaka Maeda
  • Journal Title: Polymer Journal Volume: VOL, 46 Issue: 3 Pages: 149-154
  • DOI: 10.1038/pj.2013.73
  • Peer Reviewed
• [Journal Article] Reliability of Intrinsic Viscosity Estimated by Single Point Procedure at High Concentrations (2014)
  • Author(s): Tadashi Inoue, Naoto Oba, Osamu Urakawa
  • Journal Title: Nihon Reoroji Gakkaishi Volume: 42 Issue: 4 Pages: 261-264
  • DOI: 10.1678/rheology.42.261
  • NAID: 130004926520
  • ISSN: 0387-1533, 2186-4586
  • Peer Reviewed / Open Access
• [Journal Article] Dynamic Segment Size of the Cellulose Chain in an Ionic Liquid (2013)
  • Author(s): Ayaka Maeda
  • Journal Title: Macromolecules Volume: VOL, 46 Issue: 17 Pages: 7118-7124
  • DOI: 10.1021/ma4010764
  • Peer Reviewed
• [Journal Article] Dynamic Viscoelasticity and Birefringence of Poly(ionic liquids) in the Vicinity of Glass Transition Zone (2013)
  • Author(s): Inoue, T. Matsumoto, A. Nakamura, K.
  • Journal Title: macromolecules Volume: 46 Issue: 15 Pages: 6104-6109
  • DOI: 10.1021/ma4010814
  • Peer Reviewed
• [Journal Article] Viscoelastic Behavior of Polymerized Ionic Liquids with Various Charge Densities (2013)
  • Author(s): K. Nakamura, K. Fukao, T. Inoue
  • Journal Title: Nihon Reoroji Gakkaishi Volume: 41 Issue: 1 Pages: 21-27
  • DOI: 10.1678/rheology.41.21
  • NAID: 130004436487
  • ISSN: 0387-1533, 2186-4586
  • Peer Reviewed
• [Journal Article] Dynamics of a probe molecule dissolved in several polymer matrices with different side chain structures: Determination of correlation length relevant to glass transition (2013)
  • Author(s): Shogo Nobukawa、Osamu Urakawa、 Toshiyuki Shikata、Tadashi Inoue
  • Journal Title: Macromolecules Volume: 46 Issue: 6 Pages: 2206-2215
  • DOI: 10.1021/ma302567j
  • NAID: 120005625739
  • Peer Reviewed
• [Journal Article] Linear Viscoelasticity of Polystyrene Solution Having a Wide Molar Mass Distribution around the Coil Overlap Concentration (2013)
  • Author(s): Morishima, K. Inoue, T.
  • Journal Title: Nihon Reoroji Gakkaishi Volume: 41 Issue: 3 Pages: 151-156
  • DOI: 10.1678/rheology.41.151
  • NAID: 130004926492
  • ISSN: 0387-1533, 2186-4586
• [Journal Article] Dynamic birefringence and non-linear rheology of diblock copolymer micellar solutions (2012)
  • Author(s): Tamura, E., ら
  • Journal Title: Soft Matter Volume: 8 Issue: 22 Pages: 6161-6166
  • DOI: 10.1039/c2sm25064k
  • Peer Reviewed
• [Journal Article] Rheo-Optical Study of Viscoelastic Relaxation Modes in Block Copolymer Micellar Lattice System (2012)
  • Author(s): E. Tamura, Y. Kawai, T. Inoue, and H. Watanabe
  • Journal Title: Macromolecules Volume: 45 Issue: 16 Pages: 6580-6586
  • DOI: 10.1021/ma300834u
  • Peer Reviewed
• [Presentation] Analysis of Visco-Plastic Behavior of Thermoplastic Elastomers under the Biaxial Stretching Deformation (2015)
  • Author(s): Ryuhei TAKAHASHI, Tadashi INOUE
  • Organizer: International Workshop for East Asian Young Rheologists
  • Place of Presentation: Chikushi-campus, Kyushu University
  • Year and Date: 2015-02-04 – 2015-02-07
• [Presentation] 二軸伸長変形下の熱可塑性エラストマーの粘塑性解析 (2014)
  • Author(s): 高橋龍平，井上正志
  • Organizer: 第62回レオロジー討論会
  • Place of Presentation: 福井市地域交流プラザ(福井県)
  • Year and Date: 2014-10-15 – 2014-10-17
• [Presentation] Dynamic Viscoelasticity and Birefringence Behavior of Polymerized Ionic liquids (2014)
  • Author(s): Matsumoto A., Inoue T.
  • Organizer: The 9th International Workshop for East Asian Young Rheologist (IWEAYR-9)
  • Place of Presentation: SNU Hoam Faculty House, Seoul, Korea
• [Presentation] Viscoelastic Behavior of Cubic Phase (2014)
  • Author(s): Oba N., Inoue T.
  • Organizer: The 9th International Workshop for East Asian Young Rheologist (IWEAYR-9)
  • Place of Presentation: SNU Hoam Faculty House, Seoul, Korea
• [Presentation] Detailed Analysis of Viscoelastic Behavior of Polymerized Ionic Liquids(PILs) with Rheo-Optical Measurements (2013)
  • Author(s): Atsushi Matsumoto
  • Organizer: The 8^<th> International Workshop for East Asian Young Rheologists
  • Place of Presentation: プーケット, タイ国
  • Year and Date: 2013-01-31
• [Book] 光学樹脂の複屈折制御 in 光学透明樹脂の複屈折制御技術と高屈折率化 (2014)
  • Author(s): 井上正志
  • Total Pages: 291
  • Publisher: 技術情報協会