Abstract The need for non-halogenated flame retardants continues to increase as more information about the toxicity of halogenated flame retardants and their pyrolytic byproducts becomes available. One class of non-halogenated flame retardants, organic boronic acids, has been reported in a number of papers as having flame retardant effects for cellulosic fibers as well as synthetic polymers. To improve this performance, an understanding of how the structure of the boronic acid affects its flame-retardant properties as well as its thermal stability is necessary. Reported herein are experiments aimed at achieving precisely this understanding, by investigating the thermal stability and degradation pathways of a broad variety of boronic acids, and using the resulting data to develop rules about the relationship between boronic acid structure (number of boronic acid moieties; presence/absence of functional groups, etc.) and the compound’s thermal stability. These experiments highlight a number of boronic acids with exceptional thermal stability, with pyrene-1-boronic acid (compound 18) in particular showing stability up to 600 °C.

中文翻译：

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用于潜在阻燃应用的芳族硼酸的热重分析

摘要 随着有关卤化阻燃剂及其热解副产物毒性的更多信息的获得，对非卤化阻燃剂的需求不断增加。许多论文已经报道了一类非卤化阻燃剂有机硼酸对纤维素纤维和合成聚合物具有阻燃作用。为了提高这种性能，有必要了解硼酸的结构如何影响其阻燃性能及其热稳定性。本文报告的实验旨在通过研究各种硼酸的热稳定性和降解途径，准确地实现这种理解，并使用所得数据制定有关硼酸结构（硼酸部分的数量；官能团的存在/不存在等）与化合物热稳定性之间关系的规则。这些实验突出了许多具有出色热稳定性的硼酸，尤其是芘-1-硼酸（化合物 18）在高达 600 °C 时表现出稳定性。