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2,6-Dibromo-3,5-dimethyl-4-hydroxybenzyl ether and epoxy systems

Their application in electronic packaging

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Summary

Meta-halogenated phenols are generally known to be more chemically and thermally stable than their ortho-or para-halogenated counterparts. A novel compound, 2,6-dibromo-3,5-dimethyl-4-hydroxybenzyl ether, is synthesized and is being used to incorporate this stable meta-bromo-phenol moiety into epoxy resins. In electronic encapsulation applications, epoxy derivatives of novolacs containing meta-bromo-phenol have exhibited exceptional hydrolytic and thermal stability compared to the conventional tetrabromobisphenol-A epoxies which are ortho-brominated phenolics. The meta-bromo-phenol moiety contributes to the extended device reliability life while providing fire retardency property.

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Authors and Affiliations

  1. Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan, Republic of China

    Chun-Shan Wang

  2. Central Reserach, Dow Chemical Company, Midland, MI, USA

    Abel Mendoza

Authors
  1. Chun-Shan Wang
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  2. Abel Mendoza
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Wang, CS., Mendoza, A. 2,6-Dibromo-3,5-dimethyl-4-hydroxybenzyl ether and epoxy systems. Polymer Bulletin 25, 279–286 (1991). https://doi.org/10.1007/BF00310804

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  • DOI: https://doi.org/10.1007/BF00310804

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