Thioxanthone-anthracene: A new photoinitiator for free radical polymerization in the presence of oxygen

Balta D. , Arsu N. , YAGCI Y., JOCKUSCH S., TURRO N. J.

MACROMOLECULES, vol.40, no.12, pp.4138-4141, 2007 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 40 Issue: 12
  • Publication Date: 2007
  • Doi Number: 10.1021/ma0628735
  • Title of Journal : MACROMOLECULES
  • Page Numbers: pp.4138-4141


A novel thioxanthone-anthracene (TX-A) photoinitiator, namely 5-thia-pentacene-14-one, possessing the respective photochromic groups was synthesized. TX-A is an efficient photoinitiator for free radical polymerization of acrylic and styrenic type monomers in the presence of oxygen. UV-vis, FT-IR, and fluorescence spectroscopic and polymerization studies revealed that photoinitiation occurs through anthracene chromophore. In contrast to thioxanthone-based photoinitiators, TX-A does not require an additional hydrogen donor for the initiation.