n this presentation, I will introduce the future development of chemical recycling as an initiative to solve the plastic problem.　In particular, I will introduce the outline of the actual chemical recycling process and explain the necessity of fusion of the arterial industry and the venous industry for the future based on the case of the technological development.

Integration of arterial and venous industries & promotion of chemical (feedstock) recycling

Dimaleimide-substituted tetraphenylethene (TPE-2MI), which is non-emissive due to photo-induced electron transfer (PET) between maleimide (MI) and tetraphenylethene (TPE) groups, was synthesized and used to cross-link random copolymers of methyl, decyl, or lauryl methacrylate with furfuryl methacrylate. The mixture of the copolymers and TPE-2MI in DMF showed reversible fluorescence with “turn on/off” behavior depending on the Diels–Alder (DA)/retro-DA temperature adjustable process. At high temperatures, the retro-DA reaction dominates, and the fluorescence is quenched by PET mechanism. In contrast, at low temperatures, the emission recovers as the DA reaction takes over. A transparent PMFM/TPE-2MI polymer film was prepared to show an accurate response to the external temperature with tunable fluorescent “turn on/off” behavior. This study proposes possible applications in areas such as information security and transmission.

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Integration of arterial and venous industries & promotion of chemical (feedstock) recycling

Diels–Alder Polymer Networks with Temperature-Reversible Cross-Linking-Induced Emission

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