T
Tomoyuki Ohishi
Researcher at Tokyo Institute of Technology
Publications - 30
Citations - 1003
Tomoyuki Ohishi is an academic researcher from Tokyo Institute of Technology. The author has contributed to research in topics: Polymer & Covalent bond. The author has an hindex of 14, co-authored 30 publications receiving 814 citations. Previous affiliations of Tomoyuki Ohishi include Kyushu University.
Papers
More filters
Journal ArticleDOI
Mechanophores with a Reversible Radical System and Freezing‐Induced Mechanochemistry in Polymer Solutions and Gels
Keiichi Imato,Keiichi Imato,Atsushi Irie,Takahiro Kosuge,Tomoyuki Ohishi,Masamichi Nishihara,Atsushi Takahara,Hideyuki Otsuka +7 more
TL;DR: The diarylbibenzofuranone-based mechanophore radical system enabled, through electron paramagnetic resonance spectroscopy, in-situ quantitative evaluation of scission of the mechanophores and estimation of mechanical energy induced along polymer chains by external forces.
Journal ArticleDOI
Mechanochromic Dynamic Covalent Elastomers: Quantitative Stress Evaluation and Autonomous Recovery
Keiichi Imato,Takeshi Kanehara,Tomoyuki Ohishi,Masamichi Nishihara,Hirofumi Yajima,Masayoshi Ito,Atsushi Takahara,Hideyuki Otsuka +7 more
TL;DR: This work visualize stress by color changes, as well as quantitatively estimate the stress in situ, in segmented polyurethane elastomers with diarylbibenzofuranone-based dynamic covalent mechanophores with in situ electron paramagnetic resonance measurements, accompanied by drastic color changes.
Journal ArticleDOI
Degradable epoxy resins prepared from diepoxide monomer with dynamic covalent disulfide linkage
TL;DR: In this paper, the authors demonstrate the efficient degradation of epoxy resins with disulfide linkages synthesized from bis(4-glycidyloxyphenyl)disulfide and several diamines.
Journal ArticleDOI
Enhancing Mechanochemical Activation in the Bulk State by Designing Polymer Architectures
TL;DR: In this paper, the authors designed linear and star polymers with a mechanophore at the center of each architecture, and investigated the effect of molecular weight and branched structures on mechanoresponsiveness in the solid state.
Journal ArticleDOI
Network Reorganization of Dynamic Covalent Polymer Gels with Exchangeable Diarylbibenzofuranone at Ambient Temperature
Keiichi Imato,Keiichi Imato,Tomoyuki Ohishi,Masamichi Nishihara,Atsushi Takahara,Hideyuki Otsuka +5 more
TL;DR: The reorganization of gel networks with diarylbibenzofuranone (DABBF)-based dynamic covalent linkages in response to the ambient temperature was systematically investigated from the perspective of both macroscopic and microscopic changes.