1 Ocak 2011 Dergi makalesi Açık Erişim

Dogruyol, Sevnur Keskin; Dogruyol, Zekeriya; Arsu, Nergis

Citation Style Language JSON

{
  "DOI": "10.1002/pola.24846", 
  "abstract": "Thioxanthone-based 9-(2-Morpholine-4yl-acetyl)-5-thia-napthasen-12-one (TX-MPM) was synthesized and characterized as a one-component novel visible photoinitiator. Its capability to act as an initiator for the polymerization of methyl methacrylate (MMA) was examined in photoreactor and also daylight. Photophysical properties: fluorescence and phosphorescence emission spectra and fluorescence quantum yield of TX-MPM (Phi(f) = 0.29) were determined. The phosphorescence lifetime was found 131 ms for TX-MPM and 110 ms for initiator-attached polymer (PMMA) at 77 K, indicated a pi ->pi* nature of the lowest triplet state. A model compound, morpholino acetonapthone was used as quencher for the triplet states of TX-MPM and the quenching rate constant was determined (k(q) = 1.26 x 10(9) M(-1)s(-1)). According to laser flash photolysis studies, intermolecular hydrogen abstraction process was more dominant path to the formation of the initiating radicals. (C) 2011 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 49: 4037-4043, 2011", 
  "author": [
    {
      "family": "Dogruyol", 
      "given": " Sevnur Keskin"
    }, 
    {
      "family": "Dogruyol", 
      "given": " Zekeriya"
    }, 
    {
      "family": "Arsu", 
      "given": " Nergis"
    }
  ], 
  "container_title": "JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY", 
  "id": "19215", 
  "issue": "18", 
  "issued": {
    "date-parts": [
      [
        2011, 
        1, 
        1
      ]
    ]
  }, 
  "page": "4037-4043", 
  "title": "A Thioxanthone-Based Visible Photoinitiator", 
  "type": "article-journal", 
  "volume": "49"
}