Supramolecular Interface Engineering via Interdiffusion for Reusable and Dismantlable Polymer Adhesion
Abstract
Abstract Controllable adhesion that enables both reuse and dismantling is a key requirement for sustainable materials and device integration. Here,a polymeric adhesion system is demonstrated based on reversible interactions at the interface, in which the association and dissociation of supramolecular complexes are externally regulated by thermal and chemical stimuli. By tuning the glass transition temperature ( T g ) of the polymers, chain mobility and complex reformation are simultaneously optimized, leading to enhanced interdiffusion and bond recombination at the adhesion interface. Neutron reflectivity (NR) measurements with deuterium labeling revealed that the interfacial width increased with annealing temperature, reaching up to 24.4 nm at 200 °C after 24 hours. The presence of reversible bonds suppressed polymer interdiffusion despite promoting adhesion strength. The resulting materials exhibit excellent reusability and dismantlability under mild stimuli, with strong potential for applications in recyclable electronics, automotive manufacturing, and temporary assembly technologies.
Article Details
Authors (12)
Kenji Yamaoka
Department of Macromolecular Science Graduate School of Science The University of Osaka Toyonaka Osaka 560‐0043 Japan
Takuma Wada
Department of Macromolecular Science Graduate School of Science The University of Osaka Toyonaka Osaka 560‐0043 Japan
Iori Ogasa
Department of Macromolecular Science Graduate School of Science The University of Osaka Toyonaka Osaka 560‐0043 Japan
Takeru Komyo
Department of Mechanical Engineering Osaka Institute of Technology Asahi‐ku Osaka 535–8585 Japan
Chao Luo
University of Miami , , , ,
Ryohei Ikura
Department of Macromolecular Science Graduate School of Science The University of Osaka Toyonaka Osaka 560‐0043 Japan
Masahiro Hino
Masako Yamada
Institute of Materials Structure Science High Energy Accelerator Research Organization (KEK) Tsukuba Ibaraki 305–0801 Japan
Hideki Seto
Institute of Materials Structure Science High Energy Accelerator Research Organization (KEK) Tsukuba Ibaraki 305–0801 Japan
Yoshihisa Fujii
Department of Applied Chemistry Graduate School of Engineering Mie University Tsu Mie 514–8507 Japan
Yasutomo Uetsuji
Department of Mechanical Engineering Osaka Institute of Technology Asahi‐ku Osaka 535–8585 Japan
Yoshinori Takashima
Department of Macromolecular Science Graduate School of Science The University of Osaka Toyonaka Osaka 560‐0043 Japan