An annelated thioxanthone as a new Type II initiator
Yazarlar (5)
Prof. Dr. Demet Karaca Balta Yıldız Teknik Üniversitesi, Türkiye
Nihal Çetiner
Prof. Dr. İsmail Gökhan TEMEL Yalova Üniversitesi, Türkiye
Zuhal Turgut
Prof. Dr. Nergis Arsu Yıldız Teknik Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Journal of Photochemistry and Photobiology A: Chemistry (Q2) | ||
| Dergi ISSN | 1010-6030 Dergi Bilgileri (2008) | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 09-2008 |
| Kabul Tarihi | – | Yayınlanma Tarihi | 01-09-2008 |
| Cilt / Sayı / Sayfa | 199 / 2 / 316–321 | DOI | 10.1016/j.jphotochem.2008.06.008 |
| Makale Linki | http://linkinghub.elsevier.com/retrieve/pii/S1010603008002876 | ||
| UAK Araştırma Alanları |
Polimer Bilimi
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| Özet |
| 5-Thia-naphthacen-12-one (TX-Np) was synthesized as a potential photoinitiator for radical polymerization. Polymerization studies revealed that TX-Np acts as a photoinitiator for radical polymerization of acrylic type monomers in the presence of N-methyldiethanolamine (MDEA). The phosphorescence spectrum measured at 77K in ethanol showed an emission band at λmax=505nm corresponding to the approximate triplet energy of ca. 237kJ/mol. The phosphorescence lifetime was found to be 197ms corresponding to a π–π* nature of the lowest triplet state. The quantum yield for fluorescence emission (ϕf) in benzene was found to be 0.045. Spectroscopic and polymerization studies revealed that photoinitiation occurs through the α-aminoalkyl radical, similar to thioxanthone-based photoinitiators. Since MDEA is required for TX-Np to act as an initiator for acrylate polymerization, it is suggested that the TX-Np reacts … |
| Anahtar Kelimeler |
BM Sürdürülebilir Kalkınma Amaçları
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| Google Scholar | 66 |