Characterization of vulcanized EPDM rubbers by high-resolution pyrolysis gas chromatography
Characterization of vulcanized EPDM rubbers by high-resolution pyrolysis gas chromatography
复制标题
采用高分辨率热解气相色谱法表征硫化三元乙丙橡胶
DOI：
10.5254/1.3538584
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发表时间：
1991
影响因子：
1.5
通讯作者：
S. Tsuge
中科院分区：
文献类型：
--
作者：
T. Yamada;T. Okumoto;H. Ohtani;S. Tsuge
摘要裂解气相色谱法是一种能提供高聚物独特信息的有力工具。特别是，PyGC有利于硫化橡胶等不溶性聚合物材料的实际分析。在先前的论文中，通过高分辨率PyGC研究了市售未硫化的乙烯-丙烯-亚乙基双烯橡胶（ENB-EPDM）的结构。观察到的未硫化EPDM的高分辨率热解图与ENB含量相关。此外，特征降解产物的几个峰被解释的序列分布和乙烯-丙烯组合物。本文采用高分辨PyGC对两种硫化剂硫化的ENB-EPDM（V-EPDM）进行了研究。通过高分辨率毛细管柱分离在650°C下形成的特征热解产物，并根据硫化橡胶样品中的ENB含量解释所得热解图。此外，
Abstract Pyrolysis gas chromatography (PyGC) is a powerful tool to give unique information of high polymers. Especially, PyGC is favorable for the practical analysis of insoluble polymeric materials such as vulcanized rubbers. In the previous paper, the structures of commercially available unvulcanized ethylene-propylene-ethylidenenorbornene rubbers (ENB-EPDMs) were investigated by high-resolution PyGC. The observed high-resolution pyrograms of the unvulcanized EPDMs were correlated to the ENB content. In addition, several peaks of the characteristic degradation products were interpreted in terms of the sequence distribution and the ethylene-propylene composition. In this work, vulcanized ENB-EPDMs (V-EPDMs) cured with two types of vulcanizing agents were studied using high-resolution PyGC. Characteristic pyrolysis products formed at 650°C were separated by the high-resolution capillary column, and the resulting pyrograms were interpreted in terms of ENB content in the vulcanized rubber samples. In additi...