Summary
The reaction between the epoxy resin coating and copper surface modified with imidazole copolymer has been studied by FT-IR reflection-absorption spectroscopy (FT-IR RAS). Due to the catalytic effect of the copper/imidazole complex, epoxy cure reaction has occurred on the copper surface at low temperature. The cured epoxy coating has been increased gradually above 150 °C, while the imidazole complex dissolved slightly into the resin solution. Compared to poly(vinylimidazole) homopolymer, silane-based imidazole copolymer coating remains more on the copper surface due to the adhesion promotion between copper surface and coating polymer.
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Jang, J., Shim, J.S. Spectroscopic studies of epoxy resin coating on imidazole copolymer treated copper surfaces. Polymer Bulletin 25, 677–682 (1991). https://doi.org/10.1007/BF01032664
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DOI: https://doi.org/10.1007/BF01032664