Type II photoinitiator substituted zinc phthalocyanine: Synthesis, photophysical and photopolymerization studies

KORKUT S., Temel G., Balta D., ARSU N., ŞENER M. K.

JOURNAL OF LUMINESCENCE, cilt.136, ss.389-394, 2013 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 136
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.jlumin.2012.12.025
  • Dergi Adı: JOURNAL OF LUMINESCENCE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.389-394
  • Anahtar Kelimeler: Phthalocyanine, Thioxanthone, Photopolymerization, Type II photoinitiator, Fluorescence, THIOXANTHONE, POLYMERIZATION, DERIVATIVES, COMPLEXES
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

The novel 4-(9-oxo-9 H-thioxanthen-2yloxy) phthalonitrile (TX-Pht) and its peripherally tetra substituted zinc phthalocyanine complex (TX-ZnPc) have been prepared and characterized by spectroscopic and elemental analysis techniques. Photoinitiated polymerization of methyl methacrylate (MMA) with TX-ZnPc has been investigated in the presence and absence of a co-initiator. Fluorescence and phosphorescence measurements have been also performed to determine the photophysical properties. Low fluorescence quantum yield (Phi(F)=0.08) compared to the unsubstituted ZnPc has been found. This allows initiator to undergo intersystem crossing into the triplet state and the lowest triplet state possesses pi-pi* configuration. (C) 2012 Elsevier B.V. All rights reserved.