Synthesis and Photophysical Properties of Some PEG Substitued Titanyl Phthalocyanine Derivatives |
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| Authors: | Hyo-Jin Kang Eun-Hee Kang Sang-Wook Park Jae-Wook Lee Jin- Kook Lee |
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| Affiliation: | 1. Department Polymer Science and Engineering, Pusan National University, Busan, Korea;2. Department Chemical Engineering, Pusan National University, Busan, Korea;3. Division of Chemical Engineering, Sogang University, Seoul, Korea |
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| Abstract: | ![]()
Summary: Polyethylene glycol substituted titanyl phthalocyanine was prepared in two steps starting from phthalonitrile and characterized by FT-IR, UV-vis spectrophotometry, and fluorescence spectrophotometry. The titanyl phthocyanine derivatives (TiOPcs) showed high solubility in common organic solvents, such as, CH3Cl and DMF. These compounds decreased in absorbance intensity with increase of molecular weight of polyethylene glycol at maxima wavelength of visible range. The fluorescence spectra showed a fluorescence emission near 690 nm with a quantum yield of 0.05–0.32 (λex = 625 nm). |
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| Keywords: | fluorescence photodynamic therapy titanyl pthalocyanine UV-vis spectroscopy water-soluble polymers |
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