| 초록 |
The object of this study is to develop an intelligent polymeric material by which microcracks are detected by its fluorescence change. Anthracene and its derivatives have been studied widely in the field of photochemistry. Dimers of 9-anthracenealdehyde (AA) and 9-anthracenecarboxylic acid (ACA) were synthesized by photoreaction via [4+4] cycloaddition. Their chemical structures were confirmed by 1H NMR. Cross linked polymers, Poly-AA and Poly-ACA were synthesized using PVA and the dimers as crosslinking agent. Poly-AA, Poly-ACA and their ground samples were investigated by UV-Vis spectroscopy, FT-IR spectroscopy, photoluminescence spectroscopy and absolute quantum yield measurement. The crosslinked polymers and their ground polymers showed a large difference in their fluorescence properties. Fluorescence microscopic images of microcracks in the anthracene-type polymeric material were obtained. |
