Preparation of hydrogel thin films through photoinduced electron/energy transfer reversible addition-fragmentation chain transfer polymerization
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초록
내용
Photoinduced electron/energy transfer reversible addition-fragmentation chain transfer (PET-RAFT) polymerization has been gaining attention due to its versatility, straightforwardness, and good control over reaction kinetics for polymerization. The synergy of a photocatalyst and an oxygen quencher permits the reaction to be performed in open-air systems, which normally requires the inert-gas atmosphere for conventional free radical polymerization. In this presentation, we demonstrated potential of PET-RAFT in the fabrication of acrylamide-based hydrogels. Cross-sectional morphology, swelling ratio, and tensile test were conducted to study the physicochemical characteristics of the prepared hydrogels. Furthermore, a thermal-responsive smart film, which modulates the light transmittance according to the environment temperature, was prepared via the blade-coating technique under oxygen condition.