一种简单通用的凝胶渗透色谱技术，可精确表征结构明确的聚离子液体的分子量。
A simple and universal gel permeation chromatography technique for precise molecular weight characterization of well-defined poly(ionic liquid)s.
机构信息
Center for Macromolecular Engineering, Department of Chemistry, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
出版信息
J Am Chem Soc. 2013 Mar 20;135(11):4227-30. doi: 10.1021/ja4012645. Epub 2013 Mar 8.
Poly(ionic liquid)s (PILs) are an important class of technologically relevant materials. However, characterization of well-defined polyionic materials remains a challenge. Herein, we have developed a simple and versatile gel permeation chromatography (GPC) methodology for molecular weight (MW) characterization of PILs with a variety of anions. PILs with narrow MW distributions were synthesized via atom transfer radical polymerization, and the MWs obtained from GPC were further confirmed via nuclear magnetic resonance end group analysis.
聚离子液体（PILs）是一类具有重要技术意义的材料。然而，对结构明确的聚离子材料的特性描述仍然是一个挑战。在此，我们开发了一种简单而通用的凝胶渗透色谱（GPC）方法，用于对具有多种阴离子的 PILs 的分子量（MW）进行特性描述。通过原子转移自由基聚合合成了具有较窄 MW 分布的 PILs，GPC 得到的 MW 通过核磁共振端基分析进一步得到了证实。
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