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Open AccessArticle

Synthesis of Benzene Tetracarboxamide Polyamine and Its Effect on Epoxy Resin Properties

Advanced Industrial Chemistry Research Center, Korea Research Institute of Chemical Technology, 45, Jongga-ro, Yugok dong, Jung-gu, Ulsan 44412, Korea
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Polymers 2018, 10(7), 782; https://doi.org/10.3390/polym10070782
Received: 12 June 2018 / Revised: 12 July 2018 / Accepted: 12 July 2018 / Published: 16 July 2018
(This article belongs to the Special Issue Hybrid Materials Based on Thermosets)
Epoxy resins have found various industrial applications in high-performance thermosetting resins, high-performance composites, electronic-packaging materials, adhesives, protective coatings, etc., due to their outstanding performance, including high toughness, high-temperature performance, chemical and environmental resistance, versatile processability and adhesive properties. However, cured epoxy resins are very brittle, which limits their applications. In this work, we attempted to enhance the toughness of cured epoxy resins by introducing benzene tetracarboxamide polyamine (BTCP), synthesized from pyromellitic dianhydride (PMDA) and diamines in N-methyl-2-pyrrolidone (NMP) solvent. During this reaction, increased viscosity and formation of amic acid could be confirmed. The chemical reactions were monitored and evidenced using 1H-NMR spectroscopy, FT-IR spectroscopy, water gel-phase chromatography (GPC) analysis, amine value determination and acid value determination. We also studied the effect of additives on thermomechanical properties using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamical mechanical analysis (DMA), thermomechanical analysis (TMA) and by measuring mechanical properties. The BTCP-containing epoxy resin exhibited high mechanical strength and adhesion strength proportional to the amount of BTCP. Furthermore, field-emission scanning electron microscopy images were obtained for examining the cross-sectional morphology changes of the epoxy resin specimens with varying amounts of BTCP. View Full-Text
Keywords: benzene tetracarboxamide polyamine; epoxy resin composition; thermal properties; mechanical properties benzene tetracarboxamide polyamine; epoxy resin composition; thermal properties; mechanical properties
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MDPI and ACS Style

Yu, S.; Lee, W.; Seo, B.; Lim, C.-S. Synthesis of Benzene Tetracarboxamide Polyamine and Its Effect on Epoxy Resin Properties. Polymers 2018, 10, 782.

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