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首页> 外文期刊>Journal of Applied Polymer Science >Semiquantitative analysis of the thermal degradation of polypropylene
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Semiquantitative analysis of the thermal degradation of polypropylene

机译：聚丙烯热降解的半定量分析

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The pyrolysis product distributions of polypropylene (PP) were observed, and the experimental data were semiquantitatively analyzed by computer simulation with the Molic mouse method. Studies by many researchers on PP decomposition and experimental results achieved in this study were examined. The product distributions were classified into three types of hydrocarbon products: 3n, 3n + 1, and 3n + 2 (n = monomer unit). The ratio showed the characteristic tendency, and the thermal degradation of PP appeared to include very complicated scission paths. The Molic mouse method, which was applied to the analysis of the thermal rearrangement and decomposition of poly(phenylene ether), was used to simulate the experimental results. After several steps by which the proper model was constructed, the scission probabilities to generate 2 x 3n, 3n + 1 and 3n + 2, 3n and 3n + 1, 3n and 3n + 2, C9, and C15 hydrocarbons were successfully calculated to be 0.25, 0.67, 0.47, 0.35, 1.0, and 0.33, respectively. This meant that the scission process of PP was very simple except for the C9 and C15 generation paths, for which the cyclic compounds were stable intermediates. (C) 2003 Wiley Periodicals, Inc. [References: 20]
机译：观察了聚丙烯（PP）的热解产物分布，并通过计算机模拟和Molic小鼠方法对实验数据进行了半定量分析。审查了许多研究人员对PP分解的研究以及在该研究中获得的实验结果。产物分布分为三类烃产物：3n，3n + 1和3n + 2（n =单体单元）。该比例显示出特征趋势，并且PP的热降解似乎包括非常复杂的断裂路径。采用Molic鼠标法对聚苯醚的热重排和分解进行了分析，以模拟实验结果。经过几步构建适当的模型后，成功地计算出产生2 x 3n，3n + 1和3n + 2、3n和3n + 1、3n和3n + 2，C9和C15碳氢化合物的断裂概率为分别为0.25、0.67、0.47、0.35、1.0和0.33。这意味着除C9和C15生成途径外，PP的分裂过程非常简单，因为环状化合物是稳定的中间体。 （C）2003 Wiley Periodicals，Inc. [参考：20]

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