Triphenylamine Gelator Based Visual Litmus Film for Acid Vapor Detection
발표자
이혜림 (전북대학교)
연구책임자
정광운 (전북대학교)
공동저자
이혜림 (전북대학교), 정광운 (전북대학교)
초록
내용
To develop a material responsive to acid vapor leakage, a triphenylamine (TPA)-based gelator (abbreviated TPA-3M) is newly designed and synthesized. TPA-3M exhibits aggregation-induced emission (AIE) characteristics when it forms ordered aggregates through the restriction of intramolecular rotation of the TPA core. And its organogel exhibits reversible gel-sol transition in response to stimuli such as temperature and pH, coupled with tunable fluorescence changes. To obtain a mechanically stable litmus film with these features, TPA-3M is photopolymerized in a monomeric solvent. The film shows rapid and sensitive acid-triggered color changes with reversible switching as well as fast response and recovery times. This multifunctional film enables visualization of leaks of colorless and odorless acid vapors and is expected to contribute to human safety in chemical industries. This work was supported by the Basic Research Laboratory Program (RS-2023-00207836) and BK 21 FOUR Program.