One-pot photoinduced synthesis of dansyl containing acrylamide hydrogels and their chemosensing properties
JOURNAL OF APPLIED POLYMER SCIENCE, cilt.136, sa.8, 2019 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 136 Sayı: 8
- Basım Tarihi: 2019
- Doi Numarası: 10.1002/app.47096
- Dergi Adı: JOURNAL OF APPLIED POLYMER SCIENCE
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Anahtar Kelimeler: dansyl, heavy metal ion-sensing, hydrogels, nitroaromatic compounds, photoinitiation, PHOTOPHYSICAL PROPERTIES, RADICAL POLYMERIZATION, FLUORESCENT SENSOR, NITROAROMATICS, ABSORPTION, DENDRIMERS, MONOMER, STYRENE, FILMS, HG2+
- Kocaeli Üniversitesi Adresli: Evet
Özet
Novel fluorescent acrylamide hydrogel containing dansyl moiety (DNS-gel) was synthesized via free-radical photopolymerization of acrylamide/N,N-methylenebisacrylamide by using dansyl chloride as a photoinitiator. DNS-gel presented dual-fluorescence emission when excited at 344nm in acetonitrile:water (1:1) solvent system due to twisted intramolecular charge transfer between dimethylamino and naphthalene units in the dansyl moiety. Synthesized fluorophore containing gel was utilized as a fluorescent sensor against specific metal ions (Pb2+, Hg2+, Co2+, Cd2+, Mn2+, and Zn2+) and nitroaromatic compounds [1,2-dinitrobenzene, 2,4,6-trinitro-1-phenol [picric acid (PA)], 4-nitrophenol, 2,4,6-trinitrotoluene, 2,4-dinitrophenol (2,4-DNP), and 2-nitrotoluene]. Fluorescence intensity of DNS-gel was diminished by degrees upon the infusion of metal ions and nitroaromatics. For all compounds, the greatest quenching effectiveness was attained in the presence of Co2+ (72.56%), PA (88.55%), and 2,4-DNP, suggesting that DNS-gel could be employed as a potential Co2+, PA, and 2,4-DNP chemical probes. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47096.