研究目的
To develop a class of amorphous RTP polymers based on non-metal dative bonds, through copolymerizing vinylphenylboronic acid and acrylamide derivates, aiming to overcome the high cost and toxicity associated with metal complexes used in RTP.
研究成果
The study successfully developed a series of pure organic RTP polymers utilizing boron-based dative bonds, which populate triplet excitons through ISC and inhibit the motions of the phosphors, leading to RTP property. The dynamic dative bonds as well as the hydrogen bonds afford the self-healing ability of the RTP materials, enabling recovery of both photophysical and mechanical properties after the material is damaged. This opens up new horizon to design and construct completely organic RTP polymers, providing an attractive platform to develop RTP-based sensing, data encryption, and organic devices.
研究不足
The study focuses on the development and characterization of amorphous RTP polymers based on non-metal dative bonds, but the practical applications and scalability of these materials are not extensively explored. Additionally, the environmental stability and long-term performance of these polymers under various conditions are not fully investigated.
1:Experimental Design and Method Selection:
Radical copolymerization of vinylphenylboronic acid (VPBA) and acrylamide derivates (AA) at different molar ratios to generate white powders (p-BAA-P), followed by film casting to prepare transparent films (p-BAA-F).
2:Sample Selection and Data Sources:
Samples were characterized using FTIR, solid-state 11B NMR, XPS, XRD, UV-vis, and photophysical property measurements.
3:List of Experimental Equipment and Materials:
Tosoh HIC-8320GPC for molecular weight determination, Thermo Scientific Nicolet iS50 FTIR for FTIR spectra, Bruker AV III HD 400 MHz spectrometer for 1H NMR spectra, Bruker Avance 600 solid-state NMR spectrometer for solid-state 11B NMR and solid-state 1H NMR, X-Pert diffractometer for XRD spectra, XSAM800 for XPS spectra, UV-3600 for UV-vis adsorption spectra, Fluorolog-3 spectrofluorometer for fluorescence excitation/emission spectra, and Fluorolog-3 spectrofluorometer for phosphorescence lifetime measurement.
4:Experimental Procedures and Operational Workflow:
Synthesis of BAA, BAD, and BAS by radical copolymerization, followed by film casting. Characterization of molecular weight, FTIR spectra, NMR spectra, XRD spectra, XPS spectra, UV-vis spectra, and photophysical properties.
5:Data Analysis Methods:
Analysis of FTIR, NMR, XRD, XPS, UV-vis, and photophysical property data to understand the structure-property relationships of the synthesized polymers.
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