Simultaneously self-healable and conductive materials are desirable because of their lightness, long lifetime, and flexibility. Although supramolecular chemistry has been employed to prepare these desired materials, in many cases, additional conductive agents are required. Herein, we incorporated the host-guest complexation between cyclodextrin and adamantane into an intrinsically conductive polymer system. The obtained polymeric materials showed simultaneous self-healing properties and electrical conductivities solely as coatings without addition of any conductive agents.
The group has prepared simultaneously self-healable and conductive polymeric materials based on host-guest chemistry between cyclodextrin and adamantane in poly(3,4-ethylenedioxythiophene) and poly(styrene sulfonic acid) systems . The obtained polymeric materials were investigated as functional coatings. The anchor units employed in the polymer chains increased the electric conductivities as well as the adhesion force on the substrate.
In another paper, cyclodextrin derivatives exhibited self-healing properties based on host-guest complexation in poly(dimethyl siloxane)-based materials . The cut surfaces were rejoined after being kept at room temperature for 24 hours. Despite remaining problems with healing efficiency, the cyclodextrin-based supramolecular cross-links contribute to the self-healing properties.
- Junsu Park, Hiroki Tamura, Masaki Nakahata, Yuichiro Kobayashi, Hiroyasu Yamaguchi, Katsuhiko Nakajima, Hiroaki Takahashi, Satoshi Takata, Kengo Kayano, Akira Harada, Kazuhiro Hatano, and Yoshinori Takashima (2023) Self-Healable and Conductive Hydrogel Coatings Based on Host-Guest Complexation between β-Cyclodextrin and Adamantane. Chemistry Letters
- Daichi Yoshida, Junsu Park, Ryohei Ikura, Naoki Yamashita, Hiroyasu Yamaguchi, and Yoshinori Takashima (2023) Self-Healable Poly(dimethyl siloxane) Elastomers Based on Host-Guest Complexation between Methylated β-Cyclodextrin and Adamantane. Chemistry Letters