Synthesis and characterization of oligo-2-[(2-hydroxymethylphenylimino) methyl] phenol and oligo-2-[(2-hydroxymethylphenylimino) methyl]-5-bromo-phenol

Kaya I., ERÇAĞ A., ÇULHAOĞLU S.

TURKISH JOURNAL OF CHEMISTRY, vol.31, no.1, pp.55-63, 2007 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 1
  • Publication Date: 2007
  • Journal Name: TURKISH JOURNAL OF CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Page Numbers: pp.55-63
  • Çanakkale Onsekiz Mart University Affiliated: Yes

Abstract

Oligo-2-[(2-hydroxymethylphenylimino) methyl] phenol O-(2-HMPIMP) and oligo-2-[(2-hydroxymethylphenyl imino) methyl]-5-bromo-phenol O-(2-HMPIMBP) were synthesized by the oxidative polycondensation reaction using air as an oxidant in an aqueous alkaline medium at 70 degrees C. They were characterized by H-1-NMR, FT-IR, UV-vis, TC, size exclusion chromatography (SEC) and elemental analysis. According to the SEC analyses, the number-average molecular weight (M-n), weight-average molecular weight (M-w) and polydispersity index (PDI) values of O-2-HMPIMBP and O-2-HMPIMP are 1100, 1600 g mol(-1) and 1.45; and 6000, 6250 g mol(-1) and 1.04, respectively. According to TG analyses, the weight losses of O-2-HMPIMP and O-2-HMPIMBP are 98.31% and 96.91%, respectively, at 900 degrees C.