Structural characterization of ethylene propylene-diene rubbers by high-resolution pyrolysis gas chromatography
Structural characterization of ethylene propylene-diene rubbers by high-resolution pyrolysis gas chromatography
复制标题
高分辨热解气相色谱法表征三元乙丙橡胶的结构
DOI：
10.5254/1.3538250
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发表时间：
1990
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
摘要三元乙丙橡胶（EPDM）由于其优异的耐臭氧、耐候和耐热性能而被广泛应用。因此，许多种类的EPDM作为商业聚合物提供。因此，在材料开发、工艺控制和固化产品质量保证等领域，需要可靠的方法来表征EPDM的结构。碘值法通常用于测定EPDM中的二烯含量。然而，它太耗时了，不能作为常规方法。迄今为止，人们普遍采用红外光谱和核磁共振等光谱方法来研究EPDM的组成和序列长度分布。Levine和Haines用红外光谱法测定了乙丙橡胶（ENB-EPDM）中的亚乙基双烯（ENB）含量，佛罗伦萨和Loustalot用核磁共振法研究了乙丙橡胶（ENB-EPDM）中的ENB含量。然而，这些光谱方法在分析有机物时往往遇到困难。
Abstract Ethylene-propylene-diene rubbers (EPDMs) are now used for various purposes because of their excellent resistance to ozone, weather, and heat. Therefore, many kinds of EPDMs are provided as commercial polymers. Consequently, reliable methods for the structural characterization of EPDM have been needed in the fields of material development, process control, and quality assurance of the cured products. The iodine value method is generally used to determine the diene content in EPDMs. However, it is too time consuming to be a routine method. Until now, spectroscopic methods such as IR and NMR are generally used for the study of the composition and the sequence length distributions in EPDMs. Levine and Haines determined the content of ethylidenenorbornene (ENB) in ethylene-propylene-ethylidenenorbornene rubbers (ENB-EPDMs) by IR. Florence and Loustalot investigated ethylene-propylene-1.4-hexadiene rubbers by NMR. However, these spectroscopic methods often encountered the difficulties in the analysis o...