NITROAROMATIC COMPOUND SENSING APPLICATION OF HEXA-ARMED DANSYL END-CAPPED POLY(epsilon-CAPROLACTONE) STAR POLYMER WITH PHOSPHAZENE CORE

Authors : Merve DANDAN DOGANCI, Sümeyra BAYIR, Erdinç DOGANCI, Mesut GORUR, Faruk YILMAZ

Pages : 501-514

Doi:10.18596/jotcsa.36573

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Publication Date : 2017-01-08

Article Type : Research Paper

Abstract :Hexa-armed dansyl end-capped polyinsert ignore into journalissuearticles values(ε-caprolactone); star polymer with phosphazene core insert ignore into journalissuearticles values( N 3 P 3 -insert ignore into journalissuearticles values(PCL-Dansyl); 6 ); was prepared in a two-step synthetic procedure including ring opening polymerization insert ignore into journalissuearticles values(ROP); of ε-caprolactone insert ignore into journalissuearticles values(ε-CL); and esterification reactions. The obtained fluorescence-active polymer was employed as a fluorescent probe towards certain nitroaromatic compounds insert ignore into journalissuearticles values(2,4,6-trinitrotoluene insert ignore into journalissuearticles values(TNT);, 2,4-dinitrotoluene, 2,6-dinitrotoluene, 2-nitrotoluene, 3-nitrotoluene, 2,4,6-trinitrophenol insert ignore into journalissuearticles values(picric acid);, 2,4-dinitrophenol, 4-nitrophenol, and 1,2-dinitrobenzene);. Fluorescence intensity of N 3 P 3 -insert ignore into journalissuearticles values(PCL-Dansyl); 6 was decreased gradually upon the addition of nitroaromatic compounds and the highest quenching efficiency was found to be 100% with TNT. Besides, N 3 P 3 -insert ignore into journalissuearticles values(PCL-Dansyl); 6 gave exceptionally selective response toward nitroaromatic compounds, even in the presence of toxic metal cations such as Pb 2+ , Co 2+ , Hg 2+ , Mn 2+ , Cd 2+ and Zn 2+ .
Keywords : Nitroaromatic compounds, dansyl functional star polymer, fluorescence spectroscopy