Polymer Science Series B

, Volume 58, Issue 4, pp 411–420

Chemoenzymatic polymerization of hydrazone functionalized phenol

  • Irfan Isci
  • Ersen Gokturk
  • Ersen Turac
  • Ertugrul Sahmetlioglu
Polycondensation

DOI: 10.1134/S1560090416040047

Cite this article as:
Isci, I., Gokturk, E., Turac, E. et al. Polym. Sci. Ser. B (2016) 58: 411. doi:10.1134/S1560090416040047

Abstract

Hydrazone substituted oligophenol was synthesized via enzymatic oxidative polymerization of (E)-2-((2-phenylhydrazono)methyl)phenol. Enzymatic polymerization catalyzed by Horseradish peroxidase (HRP) enzyme and H2O2 oxidizer yielded oligophenol with hydrazone functionality on the side-chain. Effects of various factors including solvent system, reaction pH and temperature on the polymerization were studied. Optimum polymerization conditions with the highest yield (84%) and molecular weight (Mn = 8 × 103, DP ≈ 37, PDI = 1.11) was achieved using MeOH/pH 6.0 buffer (1: 1 vol %) at 25°C in 24 h under air. Synthesized oligomer was characterized by 1H and 13C NMR, FTIR, UV–Vis spectroscopy, GPC, cyclic voltammetry and thermogravimetric analyses. The polymerization involved hydrogen elimination from the monomer, and terminal units of the oligomer structure consisted of phenolic hydroxyl (–OH) end groups. The oligomer backbone possessed phenylene and oxyphenylene repeat units. The resulting oligomer was completely soluble in common organic solvents. The oligomer was thermally robust and exhibited 5% mass loss at 375°C and 50% mass loss at 440°C.

Copyright information

© Pleiades Publishing, Ltd. 2016

Authors and Affiliations

  • Irfan Isci
    • 1
  • Ersen Gokturk
    • 2
  • Ersen Turac
    • 1
  • Ertugrul Sahmetlioglu
    • 3
    • 4
  1. 1.Department of ChemistryNigde UniversityNigdeTurkey
  2. 2.Department of ChemistryMustafa Kemal UniversityHatayTurkey
  3. 3.Nanotechnology Research Center (ERNAM)Erciyes UniversityKayseriTurkey
  4. 4.Department of Chemistry, M. Çıkrıkçıoğlu Vocational CollegeErciyes UniversityKayseriTurkey

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