A Quinoxaline Derivative as a Long Wavelength Photosensitizer for Diaryliodonium Salts


Bulut U., Gunbas G. E. , Toppare L.

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, cilt.48, ss.209-213, 2010 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 48 Konu: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1002/pola.23779
  • Dergi Adı: JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
  • Sayfa Sayıları: ss.209-213

Özet

This article reports the use of a quinoxaline derivative as a photosensitizer for diaryliodonium salt photoinitiators. 2,3-bis(3,4-bis(decyloxy)phenyl)-5,8-bis(2,3-dihydrothieno[3,4-b][1,4]-dioxin-5-yl)quinoxaline (DOPEQ), is a highly conjugated compound with strong absorption bands at wavelengths ranging from 300 to 550 nm and is shown to facilitate photoinitiated cationic polymerization of heterocyclic monomers such as oxiranes and oxetanes. The polymerizations are initiated at room temperature by using long wavelength UV light in the presence of diphenyliodonium hexafluorophosphate (Ph(2)I(+)PF(6)(-)). The polymerizations are monitored by optical pyrometry (OP). It is also possible to initiate photopolymerizations with ambient solar irradiation in the presence of this photosensitizer dye. (C) 2009 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 48: 209-213, 2010