Synthesis and characterization of polyphenol derived from Schiff bases containing methyl and carboxyl groups in the structure


KAYA İ., Kartal E., ŞENOL BAHÇECİ D.

DESIGNED MONOMERS AND POLYMERS, vol.18, no.6, pp.524-535, 2015 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 6
  • Publication Date: 2015
  • Doi Number: 10.1080/15685551.2015.1041084
  • Journal Name: DESIGNED MONOMERS AND POLYMERS
  • Journal Indexes: Science Citation Index Expanded, Scopus
  • Page Numbers: pp.524-535
  • Keywords: polyphenols, Schiff base polymers, optimum reaction conditions, oxidative polycondensation

Abstract

In this study, a series of Schiff bases (CBAA4MP, CBAA5MP, and CBAA3MP) which differ from each other based on the position of methyl group were synthesized. The derived monomers were changed into their polymer kind (P-CBAA4MP, P-CBAA5MP, and P-CBAA3MP) by oxidative polycondensation in aqueous alkaline medium using NaOCl as the oxidant. The structures of the synthesized compounds were enlightened using FT-IR, UV-vis, H-1-NMR, and C-13-NMR analyses. The H-1-NMR and C-13-NMR results showed that polymerization preceded by C-C and C-O-C couplings of the monomer units (phenylene and oxyphenylene groups). The molecular weight dispersion of the polymers was designated by size exclusion chromatography analysis. Electrochemical (