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Names | |
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IUPAC name 2-[[2,6-dibromo-4-[2-[3,5-dibromo-4-(oxiran-2-ylmethoxy)phenyl]propan-2-yl]phenoxy]methyl]oxirane | |
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Properties | |
C21H20Br4O4 | |
Molar mass | 656.003 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
Tetrabromobisphenol A diglycidyl ether is an epoxy resin consisting of tetrabromobisphenol A with ether linkages to two epichlorohydrin groups. An alternative structural comparison is as brominated form of bisphenol A diglycidyl ether. It is a brominated aromatic chemical used principally for giving flame retardant properties to materials. [1] It is TSCA and REACH registered and has the molecular formula C21H20Br4O4. The IUPAC name is 2-{[2,6-dibromo-4-(2-{3,5-dibromo-4-[(oxiran-2-yl)methoxy]phenyl}propan-2-yl)phenoxy]methyl}oxirane. [2] [3]
A method of synthesis is to take tetrabromobisphenol A and react with epichlorohydrin using a base to form the halohydrin. [4] This species is then further reacted with sodium hydroxide to form the diglycidyl ether. [5] Higher molecular weight epoxy resins with bromine atoms along the chain maybe synthesized by reacting standard epoxy resin with tetrabromobisphenol A in a technique called advancement. [6]
Its primary use is as a flame retardant in various materials including composites. [7] [8] It finds extensive use in electronic applications including printed circuit boards and general packaging for electronic materials. [9] [10] [11]
The toxicity has been studied extensively, and even dusts containing the material have been studied for safer reuse and recovery. [12] The material and its analogs have likewise had their toxicological properties studied. [13] It is used as a control in studies evaluating the use of non-halogenated flame retardants. [14]