The preparation of copolymerized fluorescent microspheres of styrene using detergent-free emulsion polymerization |
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| Authors: | Chun-Shan Zhao Xiao-Li Liu Meng Yang Jian-Yong Fang Jian-Jun Zhang Feng-Qi Liu |
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| Affiliation: | 1. College of Chemistry, Jilin University, Changchun 130023, China;2. College of Chemistry and environment engineering, Harbin University of Science and Technology, Harbin 150080, China;1. Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel;2. Redwood Scientific Incorporated, Pacifica, CA 94044-4300, USA;3. Physics Department, McDaniel College, Westminster, MD 21157, USA;1. Raymond and Beverly Sackler School of Physics and Astronomy, Tel Aviv University, Tel Aviv 69978, Israel;2. Redwood Scientific Incorporated, Pacifica CA94044-4300, USA;3. Physics Department, McDaniel College, Westminster, MD21157, USA |
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| Abstract: | The polymerisable fluorescent monomer, 4-ethoxyl-N-allyl-1,8-naphthalimide, was synthesized from 4-bromo-1,8-naphthalic anhydride and characterized using FT-IR spectra, 1H NMR and fluorescence spectra. A copolymer of styrene and 4-ethoxyl-N-allyl-1,8-naphthalimide was prepared by detergent-free emulsion polymerization and characterized using fluorescence spectra, SEM and fluorescence microscopy. The fluorescence spectrum of the copolymer displayed excitation at 365 nm and emission at 435 nm in acetone. SEM revealed that the copolymers were microspheres, with smooth surfaces and displayed intense blue fluorescence. |
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