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<p>Epoxy resins are widely used, particularly as base matrices for the development of composite materials, due to their excellent mechanical, thermal, and rheological properties. The objective of this work was the synthesis of a new trifunctional epoxy resin, specifically the triglycidyl ether of 2-aminobenzyl alcohol (TGEABnA). The synthesized epoxy resin was characterized using FTIR and NMR (1&#xa0;H and 13&#xa0;C) techniques, as well as microscopic analysis. Additionally, the viscosimetric, rheological, and thermal properties were evaluated. The TGEABnA was synthesized through the condensation reaction of 2-aminobenzyl alcohol with epichlorohydrin in the presence of methanol as the solvent, yielding 85% in a viscous, yellow-colored form. It was also observed that the viscosity of the TGEABnA/methanol system increases with increasing mass concentration (%) and decreases with rising temperature (°C). Rheological and thermal studies further revealed that the epoxy resin exhibited greater rheological and thermal stability when cross-linked with methylene dianiline (MDA) compared to 1,2-phenylene diamine (PDA) and 1,4-butane diamine (BDA).</p>

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Synthesis of trifunctional epoxy resin crosslinked with MDA, PDA, and BDA: microscopic, rheological, and thermal studies

  • 期刊论文

  • 发表日期：

    2025年1月30日

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  • Jalila El Azzaoui,
  • Mohamed Berradi,
  • Naoual El-Aouni,
  • Abdesselam Eddaoukhi,
  • Omar Berradi,
  • Omar Dagdag,
  • Ahmed El Yacoubi,
  • Rachid Hsissou,
  • Mehdi El Bouchti,
  • Abderrahim El Bachiri,
  • Mohamed Rafik

摘要

Epoxy resins are widely used, particularly as base matrices for the development of composite materials, due to their excellent mechanical, thermal, and rheological properties. The objective of this work was the synthesis of a new trifunctional epoxy resin, specifically the triglycidyl ether of 2-aminobenzyl alcohol (TGEABnA). The synthesized epoxy resin was characterized using FTIR and NMR (1 H and 13 C) techniques, as well as microscopic analysis. Additionally, the viscosimetric, rheological, and thermal properties were evaluated. The TGEABnA was synthesized through the condensation reaction of 2-aminobenzyl alcohol with epichlorohydrin in the presence of methanol as the solvent, yielding 85% in a viscous, yellow-colored form. It was also observed that the viscosity of the TGEABnA/methanol system increases with increasing mass concentration (%) and decreases with rising temperature (°C). Rheological and thermal studies further revealed that the epoxy resin exhibited greater rheological and thermal stability when cross-linked with methylene dianiline (MDA) compared to 1,2-phenylene diamine (PDA) and 1,4-butane diamine (BDA).