研究目的
To design and synthesize a novel multifunction luminescent small-molecule compound with hydrophilic chains that exhibits aggregation-induced emission enhancement (AIEE) characteristics and responsive behavior to temperature, pH, and UV irradiation, and to explore its applications in temperature sensors, alkali detectors, and rewritable materials.
研究成果
The synthesized compound HPTEO3PA exhibits AIEE properties and multistimuli-responsive behavior to temperature, pH, and UV irradiation, with applications in temperature sensing, alkali detection, and rewritable materials. The research provides a new method for developing AIEE-active multistimuli-responsive fluorescent materials, with future studies suggested to expand on these findings.
研究不足
The study is limited to the specific synthesized compound HPTEO3PA and its behavior in selected solvents. Potential optimizations could include exploring a wider range of stimuli, improving reversibility and stability, and scaling up for practical applications.
1：Experimental Design and Method Selection:
The study involved designing and synthesizing a small-molecule compound (HPTEO3PA) based on a-cyanostilbenic derivatives to achieve AIEE and multistimuli-responsive properties. Methods included organic synthesis, NMR and mass spectrometry for characterization, UV-Vis and fluorescence spectroscopy for photophysical studies, and particle size analysis.
2：Sample Selection and Data Sources:
The compound HPTEO3PA was synthesized and studied in various solvents (water, THF, petroleum ether mixtures). Data were collected from spectroscopic measurements under controlled conditions.
3：List of Experimental Equipment and Materials:
Equipment included Bruker ARX400 MHz spectrometer for NMR, Bruker Biflex III MALDI-TOF spectrometer for mass spectrometry, Agilent Carry 100 spectrophotometer for UV-Vis and LCST measurements, PTIQm40 luminescence spectrometer for fluorescence, 365 nm ultraviolet lamp (1000 MW) for UV irradiation, Zetasizer Nano ZS90 for particle size analysis. Materials included triethylene glycol monomethyl ether, 4-toluene sulfonyl chloride, methyl gallate, lithium aluminum hydride, manganese dioxide, potassium tert-butylate, 4-hydroxybenzyl cyanide, and various solvents.
4：Experimental Procedures and Operational Workflow:
Synthesis involved multiple steps with purification by column chromatography. Measurements included recording UV and fluorescence spectra at different temperatures, pH levels, and UV irradiation times, and assessing LCST and particle size changes.
5：Data Analysis Methods:
Data were analyzed using spectroscopic techniques, with changes in luminescence intensity, wavelength shifts, and aggregation behavior interpreted in the context of AIEE and stimuli-responsive mechanisms.
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