KOBATAKE Seiya

写真a

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Title

Professor

Laboratory location

Sugimoto Campus

Research Areas 【 display / non-display

Functional Materials Chemistry, Photochemistry, Materials Chemistry

Research subject summary 【 display / non-display

  • When a molecular structure changes reversibly by some external stimuli, the properties of the materials consisting of the molecule can change reversibly. Such molecules will possess the switching function. A phenomenon that exhibits a reversible color change by photoirradiation is called photochromism. We have reseached synthesis and physical properties of novel photochromic compounds.

Research Interests 【 display / non-display

Photochromism, Photomechanical, Organic Crystal, Molecular Sensor

Research Career 【 display / non-display

  • Fabrication of fluorescence photoswitching materials

    (Collaboration in Japan) Project Year :

    2013.04
    -
    Today

    Keyword in research subject:  Photochromism, Fluorescence molecule

  • Synthesis and Properties of Organic and Inorganic Hybrid Materials Containing Photochromic Molecules

    (Individual) Project Year :

    2010.04
    -
    Today

    Keyword in research subject:  Photochromism, Silica Nanoparticle, RAFT polymerization

  • Photochromic Behavior and Physical Property of Diarylethene Polymer in Thin Film

    (Individual) Project Year :

    2007.04
    -
    2010.03

    Keyword in research subject:  Photochromism, Diarylethene, Radical polymerization

  • Control of Solid State Properties of Photofunctional Organic Molecular Crystals

    (Individual) Project Year :

    2006.04
    -
    Today

    Keyword in research subject:  Photochromism, Structural changes, Crystal shape changes

Association Memberships 【 display / non-display

  • The Chemical Society of Japan

  • American Chemical Society

  • The Society of Polymer Science, Japan

  • The Japanese Photochemistry Association

Committee Memberships 【 display / non-display

  • 2018.08
     
     

    13th International Workshop on Crystal Growth of Organic Materials (CGOM13)   Scientific Committee

  • 2018.03
    -
    Today

    J. Photochem. Photobiol. C: Photochemistry Reviews   Associate Editor

Awards & Honors 【 display / non-display

  • The Asian and Oceanian Photochemistry Association Prize for Young Scientist 2010

    2010.11  

  • BCSJ Award, Chemical Society of Japan

    2019.08.15  

Current Career 【 display / non-display

  • Osaka City University   Graduate School of Engineering   Applied Chemistry and Bioengineering Course   Professor  

  • Osaka City University   The OCU Advanced Research Institute for Natural Science and Technology (OCARINA)  

Career 【 display / non-display

  • 2011.04
    -
    Today

    Osaka City University   Graduate School of Engineering   Professor

  • 2007.04
    -
    2011.03

    Osaka City University  

  • 2006.10
    -
    2010.03

    Japan Science and Technology Agency  

  • 2004.04
    -
    2007.03

    Osaka City University  

  • 2000.08
    -
    2004.03

    Kyushu University  

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Graduate School 【 display / non-display

  • 1993.04
    -
    1996.03

    Osaka City University  Graduate School, Division of Engineering  Department of Applied Chemistry 

  • 1991.04
    -
    1993.03

    Osaka City University  Graduate School, Division of Engineering  Department of Applied Chemistry 

Graduating School 【 display / non-display

  • 1987.04
    -
    1991.03

    Osaka City University   Faculty of Engineering  

 

Published Papers 【 display / non-display

  • Synthesis and fluorescence on/off switching of hyperbranched polymers having diarylethene at the branching point

    Katsuya Shimizu, Remi Metivier, Seiya Kobatake

    J. Photochem. Photobiol. A: Chem.  390   112341 (8 pages) 2020.03  [Refereed]

    DOI

  • Synthesis and multicolor emission properties of polystyrene with difluoroboron avobenzone complexes at side chains

    Katsuya Shimizu, A. Okuma, S. Katsumi, Fuyuki Ito, Seiya Kobatake

    Dyes and Pigments  117   108283 (7 pages) 2020.02  [Refereed]

  • Effects of Template and Molecular Nanostructure on the Performance of Organic-Inorganic Photomechanical Actuator Membranes

    Xinning Dong, Tianyi Guo, Daichi Kitagawa, Seiya Kobatake, Peter Palffy-Muhoray, Christopher J. Bardeen

    Adv. Funct. Mater.  30 ( 2 ) 1902396 (9 pages) 2020.01  [Refereed]

    DOI

  • A Dominant Factor of the Cycloreversion Reactivity of Diarylethene Derivatives as Revealed by Femtosecond Time-Resolved Absorption Spectroscopy

    Hikaru Sotome, Kanako Une, T. Nagasaka, Seiya Kobatake, Masahiro Irie, Hiroshi Miyasaka

    J. Chem. Phys.  152 ( 3 ) 034301 (9 pages) 2020.01  [Refereed]

  • Tuning of Optical Properties and Thermal Cycloreversion Reactivity of Photochromic Diarylbenzene by Introducing Electron-Donating Substituents

    Tatsumoto Nakahama, Daichi Kitagawa, Seiya Kobatake

    J. Phys. Chem. C  123 ( 51 ) 31212 - 31218 2019.12  [Refereed]

    DOI

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Books etc 【 display / non-display

  • Chapter 8. Photochromic bulk materials

    M. Morimoto, S. Kobatake, M. Irie, H. K. Bisoyi, Q. Li, S. Wang, H. Tian (Part: Joint Work )

    Photochromic Materials: Preparation, Properties and Applications, First Edition, Eds. by H. Tian, J. Zhang, Wiley-VCH Verlag  2016

  • Book chapter: Photoinduced mechanical motion of photochromic crystalline materials

    S. Kobatake, D. Kitagawa (Part: Joint Work )

    Advances in Organic Crystal Chemistry, Comprehensive Reviews 2015, Eds.: R. Tamura, M. Miyata, Springer  2015

  • Mechanically Responsive Materials for Soft Robotics Chapter 1. Photomechanical Behavior of Photochromic Diarylethene Crystals

    Seiya Kobatake, Daichi Kitagawa (Part: Contributor )

    Wiley-VCH Verlag  2020.01

Review Papers (Misc) 【 display / non-display

  • Strategy for molecular design of photochromic diarylethenes having thermal functionality

    D. Kitagawa, S. Kobatake

    Chem. Rec.  16 ( 4 ) 2005 - 2015 2016

  • Applying photoresponsive photochromic materials to light-starting thermosensors

    S. Kobatake

    Convertech & e-Print  6 ( 2 ) 57 - 61 2016

  • 光応答性フォトクロミック材料の低温温度センサーへの応用

    コンバーテック, 2015年12月号    82 - 85 2015

  • Photochromism of diarylethene molecules and crystals: Memories, switches, and actuators

    M. Irie, T. Fukaminato, K. Matsuda, S. Kobatake

    Chem. Rev.  114 ( 24 ) 12174 - 12277 2014

  • Morphology changes of photochromic single crystals

    S. Kobatake, M. Irie

    Chapter 23. in Molecular Nano Dynamics Vol. 2, Ed. by H. Fukumura, M. Irie, Y. Iwasawa, H. Masuhara, K. Uosaki, Wiley-VCH    443 - 457 2009

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Conference Activities & Talks 【 display / non-display

  • Multicolor emission properties of polystyrene with difluoroboron avobenzone complexes at side chains in solid state

    Katsuya Shimizu, Arisa Okuma, Shiho Katsumi, Fuyuki Ito, Seiya Kobatake

    International Research Conference on Engineering and Technology  2020.01 

  • Development of novel photomechanical phenomena of photoresponsive molecular crystals by high-order photoexcitation

    Seiya Kobatake  [Invited]

    Final International Symposium on Photosynergetics  2019.10 

  • Photoinduced Shape Change of Twin Crystals Composed of a Diarylethene Having a Long Alkyl Chain

    Takuya Higashiguchi, Daichi Kitagawa, Seiya Kobatake

    2019年光化学討論会  2019.09 

  • Dependence of Photoluminescence Switching Properties of Quantum Dot Coated with Diarylethene on Coated Number

    Yuya Seto, Daichi Kitagawa, DaeGwi Kim, Seiya Kobatake

    2019年光化学討論会  2019.09 

  • Photomechanical behavior for diarylethene crystals with different size or morphology and diarylethenenanoporous template composite

    Mami Isobe, Daichi Kitagawa, Seiya Kobatake

    2019年光化学討論会  2019.09 

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Other educational activity and Special note 【 display / non-display

  • Contribution to FD activities

    (2019)

  • Contribution to internationalization

    (2019)

  • Extra-Curricular Activities

    (2019)

  • Contribution to University-wide Cross-training program

    (2019)

  • Contribution to internationalization

    (2018)

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Educational activity record 【 display / non-display

  • Academic year : 2018

     View Details

    Number of instructed the graduation thesis
    5
    Number of graduation thesis reviews
    8
    Number of instructed the Master course
    8
    Number of instructed the Doctoral course
    2
    Number of master's thesis reviews (chief)
    4
    Number of master's thesis reviews (vice-chief)
    4
    Number of doctoral thesis reviews (chief)
    1
    Number of doctoral thesis reviews (vice-chief)
    0
  • Academic year : 2017

     View Details

    Number of instructed the graduation thesis
    5
    Number of graduation thesis reviews
    7
    Number of instructed the Master course
    7
    Number of instructed the Doctoral course
    2
    Number of master's thesis reviews (chief)
    3
    Number of master's thesis reviews (vice-chief)
    11
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    0
  • Academic year : 2012

     View Details

    Number of instructed the graduation thesis
    5
    Number of graduation thesis reviews
    4
    Number of instructed the Master course
    8
    Number of instructed the Doctoral course
    1
    Number of master's thesis reviews (chief)
    4
    Number of master's thesis reviews (vice-chief)
    9
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    1
  • Academic year : 2011

     View Details

    Number of instructed the graduation thesis
    4
    Number of graduation thesis reviews
    3
    Number of instructed the Master course
    8
    Number of instructed the Doctoral course
    1
    Number of master's thesis reviews (chief)
    3
    Number of master's thesis reviews (vice-chief)
    10
    Number of doctoral thesis reviews (chief)
    1
    Number of doctoral thesis reviews (vice-chief)
    0
  • Academic year : 2010

     View Details

    Number of instructed the graduation thesis
    4
    Number of graduation thesis reviews
    4
    Number of instructed the Master course
    5
    Number of instructed the Doctoral course
    1
    Number of master's thesis reviews (chief)
    1
    Number of master's thesis reviews (vice-chief)
    3
    Number of doctoral thesis reviews (chief)
    0
    Number of doctoral thesis reviews (vice-chief)
    0