Department of Chemistry, Faculty of Sciences and Engineering, Meisei University, Hodokubo 2-1-1, Hino, Tokyo 191-8506, Japan.
Chemosphere. 2010 Sep;80(11):1281-4. doi: 10.1016/j.chemosphere.2010.06.053. Epub 2010 Jul 13.
The thermal decomposition of poly(bisphenol A carbonate) (PoC) results in the formation of the endocrine disruptor bisphenol A (BPA). In the present work, we investigated the kinetics of the thermal decomposition of PoC, and the subsequent decomposition of BPA, under pyrolysis conditions and in the presence of oxygen by using infrared image furnace-ion attachment mass spectrometry. The decomposition of PoC obeyed Arrhenius kinetics, which allowed us to determine the activation energy (E(a)) for thermal decomposition to BPA from Arrhenius plots. From the selected ion monitoring curves for BPA, E(a) for thermal decomposition in a nitrogen atmosphere was calculated to be 133.2 kcal mol(-1), whereas E(a) for oxidative thermal decomposition was calculated to be approximately 35% lower (86.5 kcal mol(-1)).
聚碳酸双酚 A（PoC）的热分解会生成内分泌干扰物双酚 A（BPA）。在本工作中，我们采用红外图像炉-离子捕获质谱法，在热解条件下以及有氧存在的情况下，研究了 PoC 的热分解动力学，以及随后的 BPA 分解动力学。PoC 的分解符合阿累尼乌斯动力学，这使得我们能够从阿累尼乌斯图中确定 BPA 热分解的活化能（E(a)）。从 BPA 的选定离子监测曲线可以计算出，在氮气气氛中热分解的 E(a)为 133.2 kcal mol(-1)，而氧化热分解的 E(a)则低约 35%（86.5 kcal mol(-1)）。
