Hyperbranced Polymers by Photoinduced Self-Condensing Vinyl Polymerization Using Bisbenzodioxinone

Cansu Aydogan, Mustafa Ciftci, Volkan Kumbaraci, Naciye Talinli, Yusuf Yagci*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)


Branched polymers with different branching densities and their cross-linked analogues are synthesized by photoinduced self-condensing vinyl polymerization via benzodioxinone photochemistry. Thus, methyl methacrylate is copolymerized with two different comonomers, namely, 2-hydroxyethyl methacrylate (HEMA) and 2-(dimethylamino)ethyl methacrylate in the presence of bisbenzodioxinone (BBNZ) under UV light. Upon irradiation, BBNZ undergoes irreversible decomposition leading to the formation of benzophenone photosensitizer and bisketene. The released benzophenone is further photoexcited at the same wavelength to give the initiating radicals through hydrogen abstraction from the inimer. In the case of HEMA, additional branching sites are formed by the reaction of bisketene with the hydroxyl functionalities of HEMA. (Figure presented.).

Original languageEnglish
Article number1700045
JournalMacromolecular Chemistry and Physics
Issue number10
Publication statusPublished - May 2017

Bibliographical note

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim


  • benzodioxinones
  • hyperbranched polymers
  • photopolymerization
  • self-condensing vinyl polymerization


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