Jump to main content
Jump to site search


Quantitative studies on the p-substituent effect of the phenolic component on the polymerization of benzoxazines

Author affiliations

Abstract

The pure monofunctional benzoxazines substituted by either electron donating or withdrawing groups are synthesized to verify the electronic effect on the polymerization behaviors without any complicated factors of the impurities. The analytical data of each compound are collected using 1H-NMR, 13C-NMR, and differential scanning calorimetry (DSC). In order to quantify the electronic effect on the polymerization behavior, the Hammett substituent constant is utilized and plotted against resonances of 1H-NMR, 13C-NMR spectra and DSC exotherm maximum temperature. The use of the Hammett substituent constant is reexamined by calculating the natural charge on the phenolic moiety via ab initio calculation using the Gaussian program and correlated with the polymerization exotherm temperature. The activation energies obtained using the Kissinger and Ozawa methods are related to the electronic effect of the substituents on the phenolic part.

Graphical abstract: Quantitative studies on the p-substituent effect of the phenolic component on the polymerization of benzoxazines

Back to tab navigation

Publication details

The article was received on 21 May 2018, accepted on 10 Jul 2018 and first published on 12 Jul 2018


Article type: Paper
DOI: 10.1039/C8PY00760H
Citation: Polym. Chem., 2018, Advance Article
  •   Request permissions

    Quantitative studies on the p-substituent effect of the phenolic component on the polymerization of benzoxazines

    S. Ohashi, D. Iguchi, T. R. Heyl, P. Froimowicz and H. Ishida, Polym. Chem., 2018, Advance Article , DOI: 10.1039/C8PY00760H

Search articles by author

Spotlight

Advertisements