Novel synthesis of surface-block dendrimer using [4+4] photocycloaddition of anthryl dendrons

Yasushi Yanagimoto, Yutaka Takaguchi, Sadao Tuboi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Novel surface-block dendrimer was synthesized via a divergent/convergent approach using [4+4] photocycloaddition of two different anthracenes bearing a newly designed dendritic substituent, of which terminal groups are long alkyl chains for one hemisphere and oligo(ethylene oxide) chains for the other hemisphere. A solution of the two different anthryl dendrons was irradiated with a high-pressure mercury lamp to afford a hetero-dimer, which consists of the two different dendrons. The surface-block dendrimer was isolated by the use of size exclusion chromatography (SEC) and well characterized by NMR spectrum, SEC, and MALDI-TOF-Mass spectrum. Furthermore, this paper describes a ratio of the photoproducts (the hetero-dimer and two homo-dimers) that were obtained from the photocycloaddition reactions carried out in neat and an emulsion condition, along with the solution.

Original languageEnglish
Pages (from-to)1230-1236
Number of pages7
JournalPolymer Journal
Volume38
Issue number12
DOIs
Publication statusPublished - Dec 1 2006

Keywords

  • Anthracene
  • Convergent approach
  • Divergent
  • Emulsion
  • Photodimerization
  • Surface-block dendrimer

ASJC Scopus subject areas

  • Polymers and Plastics
  • Materials Chemistry

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