| ENDO Takatsugu |  |
| Faculty of Science and Engineering Department of Molecular Chemistry and Biochemistry | |
| Professor |
Last Updated :2025/06/13
Researcher Profile and Settings
researchmap
Research funding number
50743837Research Areas
Research Experience
- Doshisha University, 教授, 2024/04 - Today
- Doshisha University, 准教授, 2017/04 - 2024/03
- Kanazawa University, 特任助教, 2014/07 - 2017/03
- Kanazawa University, 博士研究員, 2014/04 - 2014/06
- University of California, Davis, 博士研究員, 2012/04 - 2014/03
- Chiba University, 博士研究員, 2009/04 - 2012/03
- University of California, Davis, Visiting Scholar, 2011/04 - 2011/07
- Chiba University, Chemical Analysis Center, 技術支援員, 2009/04 - 2011/03
Education
Degree
Awards
- 日本バイオマス学会奨励賞
Feb. 2017, 一般社団法人 日本エネルギー学会 - “Runner-up Topics in Current Chemistry Award for Best Poster in Theory and Spectroscopy” Poster Award for 3rd Congress on Ionic Liquids
Jun. 2009
Published Papers
- Facile preparation of cellulose IV
II using ionic liquids
Nana Tokumasu; Takeru Nakano; Shota Yoshida; Yoshifumi Kimura; Takatsugu Endo
CrystEngComm, 26(40) 5777 - 5784, 13 Sep. 2024, Scientific journal - Anion Effect on the Excited-State Intramolecular Proton Transfer of 4′-N,N-Diethylamino-3-hydroxyflavone in Ionic Liquids
Shohnosuke Nomura; Kaori Fujii; Hiroaki Sugihara; Takatsugu Endo; Yoshifumi Kimura
Journal of Physical Chemistry B, 128(27) 6549 - 6559, 11 Jul. 2024, Scientific journal - Facile preparation and charge retention mechanism of polymer-based deformable electret
Takatsugu Endo; Rikuo Komine; Hiroyuki Hamada; Takumi Nakamura; Ryo Ishida; Shun Niguma
Soft Matter, 20(29) 5800 - 5809, 04 Jul. 2024, Scientific journal - Estimation of conformational entropy for ionic liquids from NMR spectroscopy
Hiroki Sumida; Yoshifumi Kimura; Takatsugu Endo
Chemistry Letters, 53(2), Feb. 2024, Scientific journal - Role of conformational entropy in low melting point of ionic liquids: a molecular dynamics simulation study
Hiroki Sumida; Yoshifumi Kimura; Takatsugu Endo
Bulletin of the Chemical Society of Japan, 97(1), 2024, Scientific journal - Anomalous Dependence of Translational Diffusion on the Water Mole Fraction for Solute Molecules Dissolved in a 1-Butyl-3-methylimidazolium Tetrafluoroborate/Water Mixture
Yoshifumi Kimura; Rie Akai; Kohei Shimada; Mizuki Hirata; Kaori Fujii; Takatsugu Endo
The Journal of Physical Chemistry B, American Chemical Society (ACS), 127(25) 5684 - 5692, 13 Jun. 2023, Scientific journal - Formation and Substructure of Cellulose/Ionic Liquid Complex Crystals: Results from Wide-Angle X-ray Scattering and Solid-State 13C NMR Spectroscopy
Takatsugu Endo; Takeru Nakano; Nana Tokumasu; Yoshifumi Kimura
Crystal Growth and Design, 22(12) 7603 - 7610, 07 Dec. 2022, Scientific journal - Origin of low melting point of ionic liquids: dominant role of entropy
Takatsugu Endo; Kouki Sunada; Hiroki Sumida; Yoshifumi Kimura
Chemical Science, 13(25) 7560 - 7565, 08 Jun. 2022, Scientific journal - Study on the Translational Diffusion of Transient Species in 1-Alkyl-3-methylimidazolium-Based Ionic Liquids by Transient Grating Spectroscopy
Satoshi Nakajima; Hiroki Sumida; Takatsugu Endo; Yoshifumi Kimura
Bulletin of the Chemical Society of Japan, 95(8) 1220 - 1227, 2022, Scientific journal - Alkane Oxidation with H2O2 Catalyzed by Dicopper Complex with 6-hpa Ligand: Mechanistic Insights as Key Features for Methane Oxidation
Hiroto Takahashi; Kazuhito Wada; Kosei Tanaka; Kyosuke Fujikawa; Yutaka Hitomi; Takatsugu Endo; Masahito Kodera
Bulletin of the Chemical Society of Japan, 95(8) 1148 - 1155, 2022, Scientific journal - Formulation of Diffraction Intensity of Ionic Plastic Crystal and Its Application to Trimethylethylammonium Bis(fluorosulfonyl)amide
Keiko Nishikawa; Taisei Yamada; Kozo Fujii; Hyuma Masu; Ken-ichi Tozaki; Takatsugu Endo
Bulletin of the Chemical Society of Japan, The Chemical Society of Japan, 94(8) 2011 - 2018, 15 Aug. 2021, Scientific journal - Cellulose Preferentially Dissolved over Xylan in Ionic Liquids through Precise Anion Interaction Regulated by Bulky Cations
Riki Kadokawa; Takatsugu Endo; Yoshiro Yasaka; Kazuaki Ninomiya; Kenji Takahashi; Kosuke Kuroda
ACS Sustainable Chemistry & Engineering, American Chemical Society ({ACS}), 9(26) 8686 - 8691, 05 Jul. 2021, Scientific journal - Non‐Flammable and Highly Concentrated Carbonate Ester‐Free Electrolyte Solutions for 5 V‐Class Positive Electrodes in Lithium‐Ion Batteries
Takayuki Doi; Romain Jun Taccori; Ryo Fujii; Tsuyoshi Nagashima; Takatsugu Endo; Yoshifumi Kimura; Minoru Inaba
ChemSusChem, Wiley, 14(11) 2445 - 2451, 08 Jun. 2021, Scientific journal - Excited-State Intramolecular Proton Transfer Reaction and Ground-State Hole Dynamics of 4′-N,N-Dialkylamino-3-hydroxyflavone in Ionic Liquids Studied by Transient Absorption Spectroscopy
Hanamichi Miyabayashi; Kaori Fujii; Takumi Watanabe; Yoshihiro Matano; Takatsugu Endo; Yoshifumi Kimura
The Journal of Physical Chemistry B, American Chemical Society (ACS), 125(20) 5373 - 5386, 27 May 2021, Scientific journal - DFT study on conformation of 1-alkyl-3-methylimidazolium with ethyl, propyl, butyl, pentyl, and hexyl group
Takatsugu Endo; Tomoki Higuchi; Yoshifumi Kimura
Bulletin of the Chemical Society of Japan, 93(6) 720 - 729, 2021, Scientific journal - Heterogeneous structures of ionic liquids as probed by CO rotation with nuclear magnetic resonance relaxation analysis and molecular dynamics simulations
Takatsugu Endo; Hiroki Sumida; Kaori Fujii; Kenji Takahashi; Yoshifumi Kimura
Journal of Physical Chemistry B, 124(46) 10465 - 10476, 19 Nov. 2020, Scientific journal - Effect of cation alkyl chain length on photo-luminescence dynamics of ionic liquids containing dicyanoaurate(I) anion
Takamitsu Narita; Kaori Fujii; Takatsugu Endo; Yoshifumi Kimura
Journal of Molecular Liquids, 318, 15 Nov. 2020, Scientific journal - Self-assembly and complexation of cellulose/ionic liquid at high cellulose concentration: Anion dependence
Takatsugu Endo; Shota Yoshida; Yoshifumi Kimura
Crystal Growth and Design, 20(10) 6267 - 6271, 07 Oct. 2020, Scientific journal - Structure-Property Relationship for 1-Isopropyl-3-methylimidazolium- and 1- tert-Butyl-3-methylimidazolium-Based Ionic Liquids: Thermal Properties, Densities, Viscosities, and Quantum Chemical Calculations
Takatsugu Endo; Kei Sakaguchi; Kazuki Higashihara; Yoshifumi Kimura
Journal of Chemical and Engineering Data, 64(12) 5857 - 5868, 12 Dec. 2019, Scientific journal - Systematic estimation and interpretation of fractional free volume in 1-alkyl-3-methylimidazolium-based ionic liquids
Takatsugu Endo; Yuji Nishisaka; Youn Kin; Yoshifumi Kimura
Fluid Phase Equilibria, 498 144 - 150, 15 Oct. 2019, Scientific journal - Photo-excitation dynamics of N, N-dimethyl-p-nitroaniline in ionic liquids: Effect of cation alkyl-chain length
Yoshifumi Kimura; Teppei Fukui; Shinya Okazoe; Hanamichi Miyabayashi; Takatsugu Endo
Journal of Molecular Liquids, 289, 01 Sep. 2019, Scientific journal - Flame-retardant thermoplastics derived from plant cell wall polymers by single ionic liquid substitution
Nishita Ryunosuke; Kuroda Kosuke; Ota Shohei; Endo Takatsugu; Suzuki Shiori; Ninomiyac Kazuaki; Takahashi Kenji
NEW JOURNAL OF CHEMISTRY, 43(5) 2057 - 2064, 07 Feb. 2019 - Extension of Anodic Potential Window of Ester-Based Electrolyte Solutions for High-Voltage Lithium Ion Batteries
Takayuki Doi; Ryo Matsumoto; Takatsugu Endo; Ziyang Cao; Taishin Sato; Masakazu Haruta; Michihiro Hashinokuchi; Yoshifumi Kimura; Minoru Inaba
ACS Applied Energy Materials, 2019, Scientific journal - Development of high strength herbaceous composites using cellulose based materials
Motomu Tanaka; Sara Senda; Takatsugu Endo; Takayuki Tsukegi; Kazuaki Ninomiya; Kenji Takahashi
Kobunshi Ronbunshu, 76(4) 297 - 304, 2019, Scientific journal - Cellulose structural change in various biomass species pretreated by ionic liquid at different biomass loadings
Takatsugu Endo; Shunsuke Fujii; Ei Mon Aung; Kosuke Kuroda; Takayuki Tsukegi; Kazuaki Ninomiya; Kenji Takahashi
BioResources, 13(3) 6663 - 6677, 2019, Scientific journal - Photo-Luminescence Dynamics of Ionic Liquids Composed of the Dicyanoaurate(I) Anion
Takatsugu EndoYoshifumi Kimura; Takamitsu Narita; Saki Tanaka; Mitsuhiro Taniguchi; Kaori Fujii; Takatsugu Endo; Yoshiro Yasaka; Masakatsu Ueno
Australian Journal of Chemistry, accepted(1-2) 42 - 48, 2019, Scientific journal - Crystal Polymorphism of 1-butyl-3-methylimidazolium hexafluorophosphate: Phase diagram, structure and dynamics
Takatsugu Endo; Kozo Fujii; Keiko Nishikawa
Australian Journal of Chemistry, accepted(1-2) 11 - 20, 2019, Scientific journal - Efficient pretreatment of bagasse at high loading in an ionic liquid
Ei Mon Aung; Takatsugu Endo; Shunsuke Fujii; Kosuke Kuroda; Kazuaki Ninomiya; Kenji Takahashi
Industrial Crops and Products, 119 243 - 248, 01 Sep. 2018, Scientific journal - Structural characterization of the body frame and spicules of a glass sponge
Akane Arasuna; Masahito Kigawa; Shunsuke Fujii; Takatsugu Endo; Kenji Takahashi; Masayuki Okuno
Minerals, 8(3), 01 Mar. 2018, Scientific journal - Cellulose triacetate synthesis via one-pot organocatalytic transesterification and delignification of pretreated bagasse
Shiori Suzuki; Yoshiki Shibata; Daisuke Hirose; Takatsugu Endo; Kazuaki Ninomiya; Ryohei Kakuchi; Kenji Takahashi
RSC Advances, 8(39) 21768 - 21776, 2018, Scientific journal - Investigation of accessibility and reactivity of cellulose pretreated by ionic liquid at high loading
Takatsugu Endo; Ei Mon Aung; Shunsuke Fujii; Shota Hosomi; Mitsugu Kimizu; Kazuaki Ninomiya; Kenji Takahashi
CARBOHYDRATE POLYMERS, 176 365 - 373, Nov. 2017, Scientific journal - Biomass composites from herbaceous-based lignocellulose nano fibers
Sara Senda; Kenji Takahashi; Takatsugu Endo; Takayuki Tsukegi
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 254, Aug. 2017, International conference proceedings - Efficient and rapid direct transesterification reactions of cellulose with isopropenyl acetate in ionic liquids (vol 5, pg 72071, 2015)
Ryohei Kakuchi; Makoto Yamaguchi; Takatsugu Endo; Yoshiki Shibata; Kazuaki Ninomiya; Tomoyuki Ikai; Katsuhiro Maeda; Kenji Takahashi
RSC ADVANCES, 7(24) 14321 - 14321, 2017 - Efficient recovery of ionic liquid by electrodialysis in the acid hydrolysis process
Takatsugu Endo; Mai Tatsumi; Kosuke Kuroda; Heri Satria; Yumiko Shimada; Kazuaki Ninomiya; Kenji Takahashi
SEPARATION SCIENCE AND TECHNOLOGY, 52(7) 1240 - 1245, 2017, Scientific journal - Efficient Hydrolysis of Polysaccharides in Bagasse by in Situ Synthesis of an Acidic Ionic Liquid after Pretreatment
Heri Satria; Kosuke Kuroda; Takatsugu Endo; Kenji Takada; Kazuaki Ninomiya; Kenji Takahashi
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 5(1) 708 - 713, Jan. 2017, Scientific journal - Nano-Structural Investigation on Cellulose Highly Dissolved in Ionic Liquid: A Small Angle X-ray Scattering Study
Takatsugu Endo; Shota Hosomi; Shunsuke Fujii; Kazuaki Ninomiya; Kenji Takahashi
MOLECULES, 22(1), Jan. 2017, Scientific journal - Anion Bridging-Induced Structural Transformation of Cellulose Dissolved in Ionic Liquid
Takatsugu Endo; Shota Hosomi; Shunsuke Fujii; Kazuaki Ninomiya; Kenji Takahashi
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 7(24) 5156 - 5161, Dec. 2016, Scientific journal - Structure and dynamics of ionic liquids: Trimethylsilylpropyl-substituted cations and bis(sulfonyl)amide anions
Boning Wu; Yuki Yamashita; Takatsugu Endo; Kenji Takahashi; Edward W. Castner
JOURNAL OF CHEMICAL PHYSICS, 145(24) 244506 , Dec. 2016, Scientific journal - Comprehensive Conformational and Rotational Analyses of the Butyl Group in Cyclic Cations: DFT Calculations for Imidazolium, Pyridinium, Pyrrolidinium, and Piperidinium
Takatsugu Endo; Shinpei Hoshino; Yuichi Shimizu; Kozo Fujii; Keiko Nishikawa
JOURNAL OF PHYSICAL CHEMISTRY B, 120(39) 10336 - 10349, Oct. 2016, Scientific journal - Fast solute diffusivity in ionic liquids with silyl or siloxane groups studied by the transient grating method
Takatsugu Endo; Shinya Nemugaki; Yuki Matsushita; Yasuhiro Sakai; Hiroaki Ozaki; Yusuke Hiejima; Yoshifumi Kimura; Kenji Takahashi
CHEMICAL PHYSICS, 472 128 - 134, Jun. 2016, Scientific journal - shock recovery experiment of silica gel at cryogenic condition
Yoshida Yuki; Okuno Masayuki; Arasuna Akane; Fujii Shunsuke; Endo Takatsugu; Takahashi Kenji; Mizukami Tomoyuki; Atou Toshiyuki
Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences, Japan Association of Mineralogical Sciences, 2016 117 , 2016 - O-01 Higher Efficient Pretreatment of Cellulose with Smaller Amount of Ionic Liquid
ENDO Takatsugu; Aung Ei Mon; FUJII Shunsuke; HOSOMI Shota; NINOMIYA Kazuaki; TAKAHASHI Kenji
Proceedings of the Conference on Biomass Science, The Japan Institute of Energy, 11 1 - 2, 2016 - Understanding Thermal Phase Behaviors of PF6－-Paired Imidazolium-Based Ionic Liquids at the Molecular Level
ENDO Takatsugu; NISHIKAWA Keiko
Nihon Kessho Gakkaishi, 日本結晶学会, 58(1) 7 - 12, 2016 - Transport Properties of Various Ionic Liquids During Electrodialysis
Takatsugu Endo; Koji Osawa; Mai Tatsumi; Kazuaki Ninomiya; Kenji Takahashi
JOURNAL OF SOLUTION CHEMISTRY, 44(12) 2405 - 2415, Dec. 2015, Scientific journal - Structural Analysis of Crystalline R(+)-alpha-Lipoic Acid-alpha-cyclodextrin Complex Based on Microscopic and Spectroscopic Studies
Naoko Ikuta; Takatsugu Endo; Shota Hosomi; Keita Setou; Shiori Tanaka; Noriko Ogawa; Hiromitsu Yamamoto; Tomoyuki Mizukami; Shoji Arai; Masayuki Okuno; Kenji Takahashi; Keiji Terao; Seiichi Matsugo
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES, 16(10) 24614 - 24628, Oct. 2015, Scientific journal - Saccharification and ethanol fermentation from cholinium ionic liquid-pretreated bagasse with a different number of post-pretreatment washings
Kazuaki Ninomiya; Sayuri Omote; Chiaki Ogino; Kosuke Kuroda; Mana Noguchi; Takatsugu Endo; Ryohei Kakuchi; Nobuaki Shimizu; Kenji Takahashi
BIORESOURCE TECHNOLOGY, 189 203 - 209, Aug. 2015, Scientific journal - Structure and dynamics of room temperature ionic liquids with bromide anion: results from Br-81 NMR spectroscopy
Takatsugu Endo; Mamoru Imanari; Yuki Hidaka; Hiroko Seki; Keiko Nishikawa; Sabyasachi Sen
MAGNETIC RESONANCE IN CHEMISTRY, 53(5) 369 - 378, May 2015, Scientific journal - Efficient and rapid direct transesterification reactions of cellulose with isopropenyl acetate in ionic liquids
Ryohei Kakuchi; Makoto Yamaguchi; Takatsugu Endo; Yoshiki Shibata; Kazuaki Ninomiya; Tomoyuki Ikai; Katsuhiro Maeda; Kenji Takahashi
RSC ADVANCES, 5(88) 72071 - 72074, 2015, Scientific journal - Ionic liquid/ultrasound pretreatment and in situ enzymatic saccharification of bagasse using biocompatible cholinium ionic liquid
Kazuaki Ninomiya; Asami Kohori; Mai Tatsumi; Koji Osawa; Takatsugu Endo; Ryohei Kakuchi; Chiaki Ogino; Nobuaki Shimizu; Kenji Takahashi
BIORESOURCE TECHNOLOGY, 176 169 - 174, Jan. 2015, Scientific journal - Ionic Dynamics in [C(4)mim]NTf2 in the Glassy and Liquid States: Results from C-13 and H-1 NMR Spectroscopy
Takatsugu Endo; Sabyasachi Sen
JOURNAL OF PHYSICAL CHEMISTRY B, 118(51) 14888 - 14898, Dec. 2014, Scientific journal - Observation of the transition state for pressure-induced BO3 -> BO4 conversion in glass
Trenton Edwards; Takatsugu Endo; Jeffrey H. Walton; Sabyasachi Sen
SCIENCE, 345(6200) 1027 - 1029, Aug. 2014, Scientific journal - Fast cation dynamics in the crystalline state of an imidazolium-based room temperature ionic liquid due to the presence of a tiny amount of H2O
Takatsugu Endo; Mamoru Imanari; Hiroko Seki; Sabyasachi Sen; Keiko Nishikawa
SOLID STATE IONICS, 259 41 - 45, Jun. 2014, Scientific journal - Determination of Missing Crystal Structures in the 1-Alkyl-3-methylimidazolium Hexafluorophosphate Series: Implications on Structure-Property Relationships
Takatsugu Endo; Hyuma Masu; Kozo Fujii; Takeshi Morita; Hiroko Seki; Sabyasachi Sen; Keiko Nishikawa
CRYSTAL GROWTH & DESIGN, 13(12) 5383 - 5390, Dec. 2013, Scientific journal - Structural disorder and the effects of aging in a phosphate glass: Results from two-dimensional 31P PASS NMR spectroscopy
Derrick C. Kaseman; Takatsugu Endo; Sabyasachi Sen
Journal of Non-Crystalline Solids, 359 33 - 39, 01 Jan. 2013 - Thermal phase behavior of 1-butyl-3-methylimidazolium hexafluorophosphate: Simultaneous measurements of the melting of two polymorphic crystals by Raman spectroscopy and calorimetry
Takatsugu Endo; Keiko Nishikawa
Chemical Physics Letters, 584 79 - 82, 2013, Scientific journal - A Comparative Study of the Rotational Dynamics of PF6- Anions in the Crystals and Liquid States of 1-Butyl-3-methylimidazolium Hexafluorophosphate: Results from P-31 NMR Spectroscopy
Takatsugu Endo; Hiroki Murata; Mamoru Imanari; Noriko Mizushima; Hiroko Seki; Sabyasachi Sen; Keiko Nishikawa
JOURNAL OF PHYSICAL CHEMISTRY B, 117(1) 326 - 332, Jan. 2013, Scientific journal - Ultraslow Dynamics at Crystallization of a Room-Temperature Ionic Liquid, 1-Butyl-3-methylimidazolium Bromide
Mamoru Imanari; Kozo Fujii; Takatsugu Endo; Hiroko Seki; Ken-ichi Tozaki; Keiko Nishikawa
JOURNAL OF PHYSICAL CHEMISTRY B, 116(13) 3991 - 3997, Apr. 2012, Scientific journal - NMR Study of Cation Dynamics in Three Crystalline States of 1-Butyl-3-methylimidazolium Hexafluorophosphate Exhibiting Crystal Polymorphism
Takatsugu Endo; Hiroki Murata; Mamoru Imanari; Noriko Mizushima; Hiroko Seki; Keiko Nishikawa
JOURNAL OF PHYSICAL CHEMISTRY B, 116(12) 3780 - 3788, Mar. 2012, Scientific journal - Cation and anion dynamics in supercooled and glassy states of the ionic liquid 1-butyl-3-methylimidazolium hexafluorophosphate: Results from 13C, 31P, and 19F NMR spectroscopy
Takatsugu Endo; Scarlett Widgeon; Ping Yu; Sabyasachi Sen; Keiko Nishikawa
Physical Review B - Condensed Matter and Materials Physics, 85(5) 1 - 54307, 27 Feb. 2012, Scientific journal - 1,3-dimethylimidazolium hexafluorophosphate: Calorimetric and structural studies of two crystal phases having melting points of similar to 50 K difference
Takatsugu Endo; Takeshi Morita; Keiko Nishikawa
CHEMICAL PHYSICS LETTERS, 517(4-6) 162 - 165, Dec. 2011, Scientific journal - Effects of Methylation at Position 2 of Cation Ring on Rotational Dynamics of Imidazolium-Based Ionic Liquids Investigated by NMR Spectroscopy: [C(4)mim]Br vs [C(4)C(1)mim]Br
Takatsugu Endo; Mamoru Imanari; Hiroko Seki; Keiko Nishikawa
JOURNAL OF PHYSICAL CHEMISTRY A, 115(14) 2999 - 3005, Apr. 2011, Scientific journal - Effects of Methylation at the 2 Position of the Cation Ring on Phase Behaviors and Conformational Structures of Imidazolium-Based Ionic Liquids
Takatsugu Endo; Tatsuya Kato; Keiko Nishikawa
JOURNAL OF PHYSICAL CHEMISTRY B, 114(28) 9201 - 9208, Jul. 2010, Scientific journal - Phase Behaviors of Room Temperature Ionic Liquid Linked with Cation Conformational Changes: 1-Butyl-3-methylimidazolium Hexafluorophosphate
Takatsugu Endo; Tatsuya Kato; Ken-ichi Tozaki; Keiko Nishikawa
JOURNAL OF PHYSICAL CHEMISTRY B, 114(1) 407 - 411, Jan. 2010, Scientific journal - Polymorphic Properties of Ionic Liquid of 1-Isopropyl-3-methylimidazolium Bromide
Masatoshi Kawahata; Takatsugu Endo; Hiroko Seki; Keiko Nishikawa; Kentaro Yamaguchi
CHEMISTRY LETTERS, 38(12) 1136 - 1137, Dec. 2009, Scientific journal - Melting and Crystallization Behaviors of an Ionic Liquid, 1-Isopropyl-3-methylimidazolium Bromide, Studied by Using Nanowatt-Stabilized Differential Scanning Calorimetry
Keiko Nishikawa; Shaolan Wang; Takatsugu Endo; Ken-ichi Tozaki
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 82(7) 806 - 812, Jul. 2009, Scientific journal - Multifunctional photo acid generator for fluorescence imaging based on self-contained photoreaction
Takatsugu Endo; Shota Suzuki; Nobukazu Miyagawa; Shigeru Takahara
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 200(2-3) 181 - 186, Dec. 2008, Scientific journal - Isomer populations in liquids for 1-isopropyl-3-methylimidazolium bromide and its iodide and their conformational changes accompanying the crystallizing and melting processes
Takatsugu Endo; Keiko Nishikawa
JOURNAL OF PHYSICAL CHEMISTRY A, 112(33) 7543 - 7550, Aug. 2008, Scientific journal - Development of apparatus for simultaneous measurements of Raman spectroscopy and high-sensitivity calorimetry
Takatsugu Endo; Ken-ichi Tozak; Takashi Masaki; Keiko Nishikawa
JAPANESE JOURNAL OF APPLIED PHYSICS, 47(3) 1775 - 1779, Mar. 2008, Scientific journal
MISC
- 草本系バイオマスのナノファイバーを用いたプラスチック複合材料の高強度化
千田咲良; 遠藤太佳嗣; 附木貴行; 高橋憲司
セルロース学会年次大会講演要旨集, 24th, 2017 - 植物由来複合材の樹脂-バイオマス分子間相互作用の改善による高強度化
田中求; 遠藤太佳嗣; 附木貴行; 高橋憲司
セルロース学会年次大会講演要旨集, 24th, 2017 - High Performance Biomass Plastic Composite from grass-based Lignocellulose Nanofibers and Microfibers
Sara Senda; Takatsugu Endo; TSUKEGI TAKAYUKI; Kenji Takahashi
The 4th International Cellulose Conference, Cellulose Society of Japan, 2017, Summary international conference - Development of high strength and elastic Lignocellulose microfiber-reinforced composite
Motomu Tanaka; Takatsugu Endo; TSUKEGI TAKAYUKI; Kenji Takahashi
The 4th International Cellulose Conference, Cellulose Society of Japan, 2017, Summary international conference - Structural analysis of crystalline R(+)-α-lipoic acid-α-cyclodextrin complex based on microscopic and spectroscopic studies
Naoko Ikuta; Takatsugu Endo; Shota Hosomi; Keita Setou; Shiori Tanaka; Noriko Ogawa; Hiromitsu Yamamoto; Tomoyuki Mizukami; Shoji Arai; Masayuki Okuno; Kenji Takahashi; Keiji Terao; Seiichi Matsugo
International Journal of Molecular Sciences, MDPI AG, 16(10) 24614 - 24628, 16 Oct. 2015 - 2P-173 Ionic liquid pretreatment and in situ enzymatic saccharification of bagasse using biocompatible cholinium ionic liquid
Kohori Asami; Tatsumi Mai; Endo Takatsugu; Noguchi Mana; Kuroda Kosuke; Kakuchi Ryohei; Ninomiya Kazuaki; Ogino Chiaki; Takahashi Kenji
日本生物工学会大会講演要旨集, 日本生物工学会, 67 218 - 218, 2015 - 2P-170 Fran monomer production from lignocellulosic biomass pretreated and fractionated using acidic ionic liquid
YAMAOKA Kotaro; KITA Kanae; NOGUCHI Mana; KURODA Kosuke; ENDO Takatsugu; KAKUCHI Ryohei; NINOMIYA Kazuaki; OGINO Chiaki; TAKAHASHI Kenji
日本生物工学会大会講演要旨集, 日本生物工学会, 67 217 - 217, 2015 - 2P-171 High solid saccharification and subsequent fermentation from the biomass pretreated with minimum amount of ionic liquid
Shizuta Yusei; Kohori Asami; Endo Takatsugu; Noguchi Mana; Kuroda Kosuke; Kakuchi Ryohei; Ninomiya Kazuaki; Ogino Chiaki; Takahashi Kenji
日本生物工学会大会講演要旨集, 日本生物工学会, 67 217 - 217, 2015 - 2P-172 Lignomonomer production from residue obtained by ionic liquid pretreatment and enzymatic saccharification of lignocellulosic biomass
Ochiai Kobako; Abe Megumi; Noguchi Mana; Kuroda Kosuke; Endo Takatsugu; Kakuchi Ryohei; Ninomiya Kazuaki; Ogino Chiaki; Takahashi Kenji
日本生物工学会大会講演要旨集, 日本生物工学会, 67 217 - 217, 2015 - 1P-193 Production of 5-hydroxymethylfurfural from glucose derived from microalgae
Mori Shotaro; Noguchi Mana; Kuroda Kosuke; Endo Takatsugu; Kakuchi Ryohei; Ninomiya Kazuaki; Takahashi Kenji
日本生物工学会大会講演要旨集, 日本生物工学会, 67 137 - 137, 2015 - Phase Behaviors of Imidazolium-Based Ionic Liquids
ENDO Takatsugu; NISHIKAWA Keiko
Chemical engineering of Japan, 化学工学会, 75(6) 379 - 382, 05 Jun. 2011 - Multi-functional photo-X-generators developed from photoinitiators
Takatsugu Endo
Basics and Applications of Photopolymerization Reactions Vol. 3, 23 - 32, 2010 - Ionic Liquids from the Viewpoint of Thermal Phenomena : Unique Thermal Behaviors on Melting and Crystallization
NISHIKAWA Keiko; ENDO Takatsugu; TOZAKI Ken-ichi
Calorimetry and thermal analysis., 日本熱測定学会, 36(2) 98 - 104, 31 Mar. 2009
Research Projects
- イオン液体中の光励起反応における局所的な配位とドメイン構造の協奏効果
木村 佳文; 遠藤 太佳嗣; 藤井 香里
日本学術振興会, 科学研究費助成事業, 2022/04 -2026/03, 基盤研究(B), 同志社大学 - イオン液体はなぜ融点が低いか：配座エントロピーの役割の解明
遠藤 太佳嗣
本研究の目的は、イオン液体は何故異常に融点が低いのかについて、配座エントロピーの観点から明らかにすることにある。ただ、2020年度の熱測定の結果から、配座エントロピーは重要であっても、必ずしもイオン液体の低い融点において支配的ではないことが強く示唆された。 そこで2021年度ではまず、どういったエントロピー的な寄与が重要なのかを明らかにするために、融解エントロピーを、配座エントロピーを含む様々なエントロピー項に分割するための方法論の確立を目指した。結果として、分子動力学計算を使って、熱力学的積分法とTwo-Phase Thermodynamic法（S.-T. Lin et al., J. Chem. Phys. 2003）などを組み合わせることで、融解エントロピーを、動的なエントロピー差（並進エントロピー差、回転エントロピー差、分子内振動エントロピー差）と構造的なエントロピー差（配座エントロピー差、配置エントロピー差）に分割することに成功した。この手法を典型的なイオン液体2種と、代表的な無機塩であるNaClに適用した。その結果、NaClと比べて、イオン液体は、動的なエントロピー差の寄与は小さい一方で、構造的な寄与が非常に大きいことを見出した。配座エントロピー差もそれなりの寄与は持つものの、配置エントロピーが支配的な役割を果たしていることが明らかとなった。 並行して、2020年度に続き、液体状態における配座エントロピーの定量的な見積もりも、1H NMRと分子動力学法を用いて進めた。2020年度は単純な1H NMRからのJ結合定数のみであったが、2021年度では、2次元 NMR（HMQC）や部分デカップリング1H NMRを用いることで、NMRから配座エントロピーを定量的に見積もる方法を確立した。, 日本学術振興会, 科学研究費助成事業, 2019/04 -2023/03, 基盤研究(C), 同志社大学 - Control of the selectivity of chemical reaction by using the heterogenous structure of ionic liquids
Kimura Yoshifumi
In this research, we tried to control the reaction selectivity by solvent ionic liquids which have a segregated structure composed of polar and non-polar domains from the view point of reaction coordinate and solvent coordinate. We clarified that the domain structure did not make a significant control of the reaction rate of the electron transfer reaction which is controlled by the long-ranged Coulomb force. On the other hand, photo-induced intramolecular proton transfer reaction is strongly affected by the domain structure and excitation wavelength of the reaction. The molecular dynamics of the non-polar domain was revealed not to have the relation with the solvent dynamics which affects the viscosity., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2017/07 -2020/03, Grant-in-Aid for Scientific Research (B), Doshisha University - Why does ionic liquid dissolve cellulose? -determination of the solubility at molecular level-
Endo Takatsugu
Unlike conventional visual observation, we employed spectroscopic techniques to determine cellulose solubility in ionic liquid at the molecular level. What we obtained in this research is summarized as follows. 1. At the molecular level some ionic liquids dissolve cellulose at the concentration of nearly 40%, which is mostly twice higher than the previous results. 2. The origin of the high solubility would stem from the “anion bridging” where an anion bridges two cellulose chain via multiple hydrogen bondings. 3. Some ionic liquids form co-crystal with cellulose, which has been observed here for the first time., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2017/04 -2019/03, Grant-in-Aid for Young Scientists (B), Doshisha University - Ionic liquid-assisted complete biomass refinery by utilizing lignin
NINOMIYA Kazuaki
In this research, lignin in woody biomass is processed into 3 types of “lignin monomer”, “lignin oligomer” and “lignin residue” using ionic liquid. From respective lignin-derived materials, we synthesize "new epoxy resin", "ultra-high molecular weight structured resin", and "composite material with inorganic material". This technology is the basis of the "complete biomass refinery" which makes high use of lignin in addition to the polysaccharide component of woody biomass., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2015/04 -2019/03, Grant-in-Aid for Scientific Research (B), Kanazawa University - Lignin sulfonic acid-based self-healing materials via bridging by using an ionic liquid-type dication
Kenji Takahashi
Lignin sulfonic acid was bridged via ion bonds by using ionic liquid-type dications and a new material was developed. First, we developed a novel phosphonium-type dication as an agent for bridging. The composite of lignin sulfonic acid and the dication was prepared just by mixing them. Small scratches were healed by heating., Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research, 2015/04 -2017/03, Grant-in-Aid for Challenging Exploratory Research, Kanazawa University