Thermoxidative degradation of polypropylene
Thermoxidative degradation of polypropylene
复制标题
聚丙烯的热氧化降解
DOI：
10.1002/pola.1988.080260614
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发表时间：
1988
期刊：
影响因子：
--
通讯作者：
I. Agherghinei
中科院分区：
文献类型：
--
作者：
C. Vasile;L. Odochian;I. Agherghinei
研究了无规立构和等规聚丙烯在动态热氧化条件下的热氧化行为。已经确定，随着加热速率的增加，氧化过程的发展减弱，因此反应机理发生改变。同时可以注意到，对于无规立构聚合物，氧化过程更加强烈。 5–15°C/分钟的加热速率决定了样品热行为之间的显着差异，从而可以制定标准曲线，用于通过常规分析快速测定工业产品的无规立构含量。
The thermoxidative behavior of atactic and isotactic polypropylene under dynamical thermoxidative conditions has been studied. It has been established that, with the increase of the heating rate, the development of the oxidative processes are diminished and consequently a modification in the reaction mechanism takes place. One can notice at the same time that the oxidative processes are more intense in the case of the atactic polymer. The 5–15°C/min heating rates determine significant differences between the thermal behavior of the samples, permitting the elaboration of the standard curves useful in fast determination of the atactic content of the industrial products by routine analysis.