| Summary: | 碩士 === 國立臺北科技大學 === 化學工程研究所 === 95 === We synthesized three 1,2,4-triazole based difluoro monomers containing azobenzene, carbazole, and triphenylamine, and azobenzene, respectively. The monomers were polymerized with various diols in polar aprotic solvent, 1,3-dimethyl-3,4,5,6-tetrahydro-2(1H)-pyrimidinone (DMPU), in the presence of potassium carbonate yielding novel poly(aryl ether)s.
The structures of monomers and polymers were confirmed by Elemental analyzer(EA), FT-IR and NMR. The optical properties were analyzed by UV-Vis and photoluminescence(PL) spectroscopy. The polymers exhibited UV-Vis absorption bands at 240-380nm in THF solution. Their photoluminescence spectra showed emission peaks around 320-520 nm in THF solution.
The thermal properties of polymers were evaluated by TGA and DSC. The polymers exhibited glass-transition temperatures above 185 ℃, and the temperatures at 5% weight loss above 316 ℃ in nitrogen.
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