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A02 Masashi Kunitake

Masashi Kunitake

Participating A02

Affiliation

Faculty of Advanced Science and Technology, Kumamoto University

Position

Professor

Contact

kunitake@kumamoto-u.ac.jp

HP

http://www.chem.kumamoto-u.ac.jp/~polymers/

Research Project

Coordination asymmetry materials produced by on-site recrystallization method

Co-Investigator

Satoshi Watanabe (Assistant professor, Faculty of Advanced Science and Technology, Kumamoto University)

Abstract

We develop two-dimensional (2D) nanosheets of crystalline coordination frameworks (SURMOF) on a well-defined surface as a coordination asymmetry system. We found that an acetic acid vapor environment dramatically decreased the activation energy and accelerated the recombination of coordination bonds between metal ions and carboxylate ligands in metal-organic frameworks. Ultimately, two-dimensional horizontal crystal growth was induced to form monomolecular sheets as the most thermodynamically stable crystal structure on a surface.

Research Areas

Polymer Chemistry, Electrochemistry, Colloid & Interface Chemistry, Probe Microscope

Keywords

Crystallization, Self-assembly, Nanosheets, Probe Microscopy

2020

[12] Standalone semi-solid state electrochemical systems based on bicontinuous microemulsions gel films,
Hinako Hashimoto; Kyosei Goto; Kouhei Sakata; Satoshi Watanabe; Tomoyuki Kamata; Dai Kato; Osamu Niwa; Eisuke Kuraya; Taisei Nishimi; Mitsunobu Takemoto; Masashi Kunitake, Analytical Chemistry, 92, 14031 - 14037, 2020
DOI: 10.1021/acs.analchem.0c02948.
[11] Monolithic Au Thin Film with Tunable Nanostructure Electrodeposited from Bicontinuous Microemulsion as Dynamic Soft Template,
Shunsuke Shiba; Shoei Hirabayashi; Osamu Niwa; Dai Kato; Masashi Kunitake; Masanobu Matsuguchi, ACS Appl. Nano Mater., 3, 7750 - 7760, 2020
DOI: 10.1021/acsanm.0c01316.
[10] Near-infrared two-wavelength-selective response of thermosensitive gels,
Satoshi Watanabe; Kenji Kojio; Masashi Kunitake, Chem. Lett., 49, 1111 - 1113, 2020
DOI: 10.1246/cl.200391.
[9] Monomolecular Covalent Honeycomb Nanosheets Produced by Surface-Mediated Polycondensation between 1,3,5-Triamino Benzene and Benzene-1,3,5-Tricarbox Aldehyde on Au(111),
Masashi Kunitake; Ryota Tanoue; Rintaro Higuchi; Soichiro Yoshimoto; Ryusei Haraguchi; Shinobu Uemura; Nobuo Kimizuka,; Adam Z. Stieg; James K. Gimzewski, Nanosclae Advance, 2, 3202 - 3208, 2020
DOI: 10.1039/D0NA00180E.

2019

[8] Single crystallization of an organic semiconductor in hydrogel capillaries for transferring onto substrates,
Satoshi Watanabe; Ryota Urata; Tetsuya Sato; Shintaro Ida; Masashi Kunitake, Crystal Growth and Design, 19, 3410 - 3416, 2019
DOI: 10.1021/acs.cgd.9b00297.

2018

[7] Inorganic Janus nanosheets bearing two types of covalently bound organophosphonate groups via regioselective surface modification of K4Nb6O17·3H2O,
Ryoko Suzuki; Mitsuhito Sudo; Megumi Hirano; Naokazu Idota; Masashi Kunitake; Taisei Nishimi; Yoshiyuki Sugahara, Chem. Commun., 54, 5756 - 5759, 2018
DOI: 10.1039/C8CC02892C.
[6] Two-wavelength infrared responsive hydrogel actuators containing rare-earth photothermal conversion particle,
Satoshi Watanabe; Hiroshi Era; Masashi Kunitake, Sci. Rep., 8, 1, 13528 - 13535, 2018
DOI: 10.1038/s41598-018-31932-2.

2017

[5] Quasi-phase Diagrams at Air/Oil Interfaces and Bulk Oil Phases for Crystallization of Small-Molecular Semiconductors by Adjusting Gibbs Adsorption,
Satoshi Watanabe; Takahisa Ohta; Ryota Urata; Tetsuya Sato; Kazuto Takaishi; Masanobu Uchiyama; Tetsuya Aoyama; Masashi Kunitake, Langmuir, 33, 8906 - 8913, 2017
DOI: 10.1021/acs.langmuir.7b01603.
[4] Cohelical Crossover Network by Supramolecular Polymerization of a 4,6-Acetallized -1,3-Glucan Macromer,
Junji Sakamoto; Rio Kita; Isala Duelamae; Masashi Kunitake; Megumi Hirano; Daisuke Yoshihara; Tatsuhiro Yamamoto; Takao Noguchi; Bappaditya Roy; Seiji Shinkai, ACS Macro Lett., 6, 21 - 26, 2017
DOI: 10.1021/acsmacrolett.6b00706.
[3] Necklace-Shaped Dimethylsiloxane Polymers Bearing Polyhedral Oligomeric Silsesquioxane Cages with Alternating Length Chains,
Naohiro Katsuta; Marie Yoshimatsu; Kunihiro Komori; Tsubasa Natsuaki; Kazuya Suwa; Kiyoshi Sakai; Takashi Matsuo; Tomoyuki Ohba; Shinobu Uemura; Satoshi Watanabe; Masashi Kunitake, Polymer, 127, 8 - 14, 2017
DOI: 10.1016/j.polymer.2017.08.049.

2016

[2] Direct Electrochemical Hydrogenation of Toluene at Pt Electrodes in a Microemulsion Electrolyte Solution,
Mitsuru Wakisaka; Masashi Kunitake, Electrochemistry Communication, 64, 5 - 8, 2016
DOI: 10.1016/j.elecom.2016.01.001.
[1] Direct Analysis of Lipophilic Antioxidants of Olive Oils using Bicontinuous Microemulsions,
E. Kuraya; S. Nagatomo; K. Sakata; D. Kato; O. Niwa; T. Nishimi; M. Kunitake, Analytical Chemistry, 88, 1202 - 1209, 2016
DOI: 10.1021/acs.analchem.5b03445.