One Component Thioxanthone Acetic Acid Derivative Photoinitiator for Free Radical Polymerization
Yazarlar (5)
Prof. Dr. İsmail Gökhan TEMEL
Yalova Üniversitesi, Türkiye
Demet Karaca Balta
Yıldız Teknik Üniversitesi, Türkiye
Nergis Arsu
Yıldız Teknik Üniversitesi, Türkiye
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Photochemistry and Photobiology | ||
| Dergi ISSN | 0031-8655 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SCI-Expanded | ||
| Makale Dili | İngilizce | Basım Tarihi | 03-2014 |
| Cilt / Sayı / Sayfa | 90 / 2 / 463–469 | DOI | 10.1111/php.12218 |
| Makale Linki | http://doi.wiley.com/10.1111/php.12218 | ||
| Özet |
| Acetic acid–based thioxanthone (TXCH2COOH) was synthesized and characterized and used as a photoinitiator for free radical photopolymerization of methyl methacrylate (MMA) in the absence and presence of a tertiary amine (MDEA) in different solvents. Different absorption properties were observed depending on the solvent. Fluorescence and phosphorescence experiments were also carried out successfully. The fluorescence quantum yield was found to be 0.09 and the phosphorescence lifetime was calculated as 138 ms at 77 K. The photoinitiator undergoes efficient intersystem crossing into the triplet state and the lowest triplet state possesses π–π* configuration. Laser flash photolysis experiments show that transient absorption of TXCH2COOH is similar to the parent thioxanthone and the triplet lifetime was calculated as 2.3 μs at 630 nm. |
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BM Sürdürülebilir Kalkınma Amaçları
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| Google Scholar | 62 |