Catalytic Oxidation of 2,7-Dihydroxynaphthalene


BİLİCİ A. , DOĞAN F. , KAYA İ.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, vol.53, no.1, pp.104-109, 2014 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 53 Issue: 1
  • Publication Date: 2014
  • Doi Number: 10.1021/ie401735j
  • Title of Journal : INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
  • Page Numbers: pp.104-109

Abstract

Two polymer-metal complexes were used for catalytic oxidative polymerization of 2,7-dihydroxynaphthalene (DHN) with the aim of exploiting new and potent catalysts. The structure of the resulting poly(2,7-dihydroxynaphthalene) (PDHN) was confirmed by various spectral techniques: UV-vis, FT-IR, H-1 NMR, C-13 NMR, H-1-H-1 COSY, and H-1-C-13 HSQC. The 3 and 6 positions of the DHN ring were suggested as main coupling sites. The effect of the reaction conditions on the monomer conversions and the polymer molecular weight was determined: yields in the range 74-99% and number-average molecular weights in the range 1700-83 000 g mol(-1) were obtained. Thermal, optical, and electrochemical behaviors of the polymer were also studied. From fluorescence analyses, a case of negative solvatochromism for PDHN was established.