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Synthesis, purification and curing studies of vinyl ester network

D. Behera (Materials Science Centre, Indian Institute of Technology, Kharagpur, India)
H. Satapathy (Materials Science Centre, Indian Institute of Technology, Kharagpur, India)
A.K. Banthia (Materials Science Centre, Indian Institute of Technology, Kharagpur, India)

Pigment & Resin Technology

ISSN: 0369-9420

Article publication date: 18 September 2007

580

Abstract

Purpose

This paper seeks to prepare and characterise vinyl ester (bisphenol‐A‐glycidyldimethacrylate (BisGMA)) prepolymer via a new synthetic route by the esterification of methacrylic acid and epoxy resin

Design/methodology/approach

BisGMA prepolymer was synthesised from methacrylic acid and diglycidyl ether of bisphenol‐A (BPA) type epoxy resin. The synthesised compound was then purified and characterised.

Findings

BisGMA prepolymer was synthesised from methacrylic acid and diglycidyl ether of BPA‐type epoxy resin using triphenylphosphine as a catalyst and hydroxytoluene as a stabiliser. The synthesised compound was then purified by normal phase liquid chromatography and was analysed by proton NMR and reverse phase HPLC. The cure kinetics of the purified resin were investigated by differential scanning calorimetry using NETZSCH thermokinetics software.

Research limitations/implications

The preparation, purification and kinetics study of the prepolymer described in the present investigation may be useful for preparation, purification and kinetics study of the other vinyl esters by a new synthetic route. Also, the polymers supports based on bisphenol‐A‐glycidyldimethacrylate have acceptable mechanical properties, chemical stability and are suitable for dental restoratives, fissure sealants, coatings, adhesives, moulding compounds, structural laminates, electrical applications and military/aerospace applications.

Practical implications

The method for the preparation, purification and kinetics study of the prepolymer is simple and the above method provides a simple and practical solution for some other vinyl esters.

Originality/value

This is a novel method for synthesis and purification of BisGMA and may be useful for the synthesis and purification of other vinyl esters.

Keywords

Citation

Behera, D., Satapathy, H. and Banthia, A.K. (2007), "Synthesis, purification and curing studies of vinyl ester network", Pigment & Resin Technology, Vol. 36 No. 5, pp. 271-278. https://doi.org/10.1108/03699420710820379

Publisher

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Emerald Group Publishing Limited

Copyright © 2007, Emerald Group Publishing Limited

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