A03 Fumitaka Ishiwari

Fumitaka Ishiwari		Participating A03
Affiliation	Graduate school of Engineering, Osaka University
Position	Assistant Professor, tenure track
Contact	ishiwari@chem.eng.osaka-u.ac.jp
HP	http://www.chem.eng.osaka-u.ac.jp/~saeki/cmpc/index.html
Research Project	Development of “Bifacial Polymer” Featuring Unique Asymmetric Coordination Ability
Abstract	Generally, polymers are linked by a single chemical bond along the main chain, and regarded as a “string-like” substance. On the other hand, ladder polymers having two or more bonds along the main chain can be regarded as a “tape-like” substance with a certain “face”. In this context, we designed “bifacial polymer” having different faces with different properties on both sides. Such bifacial polymers may function as a scaffold for asymmetric assembly of various guests. Recently, our group reported the synthetic method of ladder polymers featuring flexible conformational change (F. Ishiwari et al., ACS Macro Lett. 2017, 6, 775). In this work, based on our methodology for the synthesis of flexible ladder polymers, we will develop bifacial polymers and explore their asymmetry function arising from the unique asymmetric coordination ability.
Research Areas	Polymer Chemistry, Physical Organic Chemistry, Supramolecular Chemistry
Keywords	Ladder Polymers, Anisotropic Assembly, Host-Guest Chemistry

2021

[9] Analysis of Interconversion between Atropisomers of Chiral Substituted 9,9’‐Bicarbazole,
Toshifumi Kobayashi; Fumitaka Ishiwari; Takanori Fukushima; Kengo Hanaya; Takeshi Sugai; Shuhei Higashibayashi, Eur. J. Org. Chem., 2021, 449 – 451, 2021
DOI: 10.1002/ejoc.202001385.

[8] Thermal Transport Properties of an Oriented Thin Film of a Paraffinic Tripodal Triptycene,
Takaki Imaizumi; Ryosuke Takehara; Yuichiro Yamashita; Takashi Yagi; Fumitaka Ishiwari; Yoshiaki Shoji; Xiaohan Wang; Yoichi Murakami; Tomoaki Nishino; Takanori Fukushima, Jpn. J. Appl. Phys., 60, 038002, 2021
DOI: 10.35848/1347-4065/abe340.

2020

[7] Highly Sensitive Humidity Sensor Based on Aggregation-Induced Emission Luminogen-Appended Hygroscopic Polymer Microresonator,
Airong Qiagedeer; Hiroshi Yamagishi; Minami Sakamoto; Hanako Hasebe; Fumitaka Ishiwari; Takanori Fukushima; Yohei Yamamoto, Mater. Chem. Front., 5, 799 – 803, 2020
DOI: 10.1039/D0QM00722F.

[6] Design of a molecular memory element with an alternating circular array of dipolar rotors and rotation suppressors,
Takuya Miyazaki; Yoshiaki Shoji; Fumitaka Ishiwari; Takashi Kajitani; Takanori Fukushima , Chem. Sci., 11, 8388 – 8393, 2020
DOI: 10.1039/D0SC02836C.

[5] Spatiotemporal Dynamics of Aggregation‐Induced Emission Enhancement Controlled by Optical Manipulation,
Shun‐Fa Wang; Jhao‐Rong Lin; Fumitaka Ishiwari; Takanori Fukushima; Hiroshi Masuhara; Teruki Sugiyama, Angew. Chem. Int. Ed., 59, 18, 7063 – 7068, 2020
DOI: 10.1002/anie.201916240.

2019

[4] Switching of the Conformational Flexibility of a Diazacyclooctane-Containing Ladder Polymer by Coordination and Elimination of a Lewis Acid,
F. Ishiwari; M. Ofuchi; K. Inoue; Y. Sei; T. Fukushima, Polym. Chem., 11, 236 – 240, 2019
DOI: 10.1039/c9py01104h.

[3] Ultralow-Noise Organic Transistors Based on Polymeric Gate Dielectrics with Self-Assembled Modifiers,
M. Kondo; T. Uemura; F. Ishiwari; T. Kajitani; Y. Shoji; M. Morita; N. Namba; Y. Inoue; Y. Noda; T. Araki; T. Fukushima; T. Sekitani, ACS Appl. Mater. Interfaces, 11, 41561 – 41569, 2019
DOI: 10.1021/acsami.9b13056.

[2] Self-Assembly Growth of an Upright Molecular Precursor with a Rigid Framework,
S. Chaunchaiyakul; C. Zhang; H. Imada; E. Kazuma; F. Ishiwari; Y. Shoji; T. Fukushima; Y. Kim, J. Mater. Chem. C, 123, 31272 – 31278, 2019
DOI: 10.1021/acs.jpcc.9b09948.

[1] Highly-ordered Triptycene Modifier Layer Based on Blade Coating for Ultraflexible Organic Transistors,
M. Kondo; T. Kajitani; T. Uemura; Y. Noda; F. Ishiwari; Y. Shoji; T. Araki; S. Yoshimoto; T. Fukushima; T. Sekitani, Sci. Rep., 9, 9200, 2019
DOI: 10.1038/s41598-019-45559-4.