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顶空气相色谱分析法是对液体或固体中挥发组分进行分析的一种测定方法。这一方法近年来在食品、药物以及环境分析中得到广泛应用。这一方法对分析聚合物中可挥发性组分有特殊的优点。它可以免去对样品冗长的预处理,以及高沸点物质对色谱系统的污染。静态顶空色谱法早已应用于聚合物中挥发组分的分析,但尚未见到测定聚醚链节比的报道。本文把顶空分析技术和毛细管色谱技术结合,通过测聚醚中的单体量推算出聚醚链节比。
Headspace gas chromatography is a method for the analysis of volatile components in liquids or solids. This method has been widely used in food, medicine and environmental analysis in recent years. This method has particular advantages for the analysis of volatile components in polymers. It eliminates the need for lengthy pretreatment of samples and the contamination of chromatographic systems by high-boiling substances. Static headspace chromatography has long been used in the analysis of volatile components in polymers, but reports of determination of polyether chain ratios have not been reported. In this paper, headspace analytical techniques and capillary chromatography combined with polyether ether by measuring the amount of monomer to calculate the polyether chain ratio.