利用高温二维液相色谱对功能化聚烯烃进行表征  

Characterization of Functionalized Polyolefins by High-Temperature Two-Dimensional Liquid Chromatography

作　　者：Anton GINZBURG Tibor MACKO Robert BRüLL 

机构地区：[1]the Dutch Polymer Institute [2]the Analytical Department in the Department of Analytics,German Institute

出　　处：《生命科学仪器》2011年第3期3-6,共4页Life Science Instruments

基　　金：This project forms part of the Dutch Polymer Institute(DPI) project No.642/643

摘　　要：二维液相色谱(2D-LC)提供了合成聚合物和生物聚合物分子异质性的不同方面的信息。聚烯烃材料的2D-LC分析需要高温,但聚烯烃的高温二维液相色谱(HT-2D-LC)分析条件却未见报道。通过高温相互作用液相色谱系统(根据分析物分子化学成分的差异进行分离)和体积排阻色谱(SEC)(根据分析物分子摩尔质量的不同进行分离)的联用,乙烯-乙酸乙烯酯共聚物的完整HT-2D-LC分离第一次得以实现。Two-dimensional liquid chromatography （2D-LC） provides information on the different aspects of molecular heterogeneity of synthetic and biological polymers. The 2D-LC of polyolefin materials, however, requires the use of elevated temperatures. The conditions for high-temperature 2D-LC （HT-2D-LC） of polyolefins have not yet been published. By coupling the high-temperature interactive liquid chromatography system （in which the molecules are distinguished with respect to chemical composition） with size exclusion chromatography （SEC） （where the molecules are separated according to the differences in molar masses）, comprehensive HT-2D-LC separation of ethylene-vinyl acetate copolymers was performed for the first time.

关 键 词：二维液相色谱 功能化聚烯烃 高温 乙烯-乙酸乙烯酯共聚物 聚合物分子 表征 利用 液相色谱系统 

分 类 号：TQ342.8[化学工程—化纤工业]