Naphthodioxinone-1,3-benzodioxole as photochemically masked one-component type II photoinitiator for free radical polymerization

Volkan Kumbaraci, Binnur Aydogan, Naciye Talinli*, Yusuf Yagci

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

50 Citations (Scopus)

Abstract

A 1,3-benzodioxole derivative of naphthodioxinone, namely 2-(benzo[d][1,3]dioxol-5-yl)-9-hydroxy-2-phenyl-4H-naphtho[2,3-d][1,3] dioxin-4-one was synthesized and characterized. Its capability to act as caged one-component Type II photoinitiator for free radical polymerization was examined. Upon irradiation, this photoinitiator releases 5-benzoyl-1,3- benzodioxole possessing both benzophenone and 1,3-dioxole groups in the structure as light absorbing and hydrogen donating sites, respectively. Subsequent photoexcitation of the benzophenone chromophore followed by hydrogen abstraction generates radicals capable of initiating free radical polymerization of appropriate monomers.

Original languageEnglish
Pages (from-to)2612-2618
Number of pages7
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume50
Issue number13
DOIs
Publication statusPublished - 1 Jul 2012

Keywords

  • irradiation
  • naphthodioxinone
  • photopolymerization
  • radical polymerization
  • Type II photoinitiator

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