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首页> 外文期刊>Electrophoresis: The Official Journal of the International Electrophoresis Society >Copolymerized polymeric surfactants: Characterization and application in micellar electrokinetic chromatography.
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Copolymerized polymeric surfactants: Characterization and application in micellar electrokinetic chromatography.

机译：共聚的聚合物表面活性剂：表征和在胶束电动色谱中的应用。

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摘要

An achiral monomeric surfactant (sodium 10-undecenyl sulfate, SUS) and a chiral surfactant (sodium 10-undecenoyl L-leucinate, SUL) were synthesized and polymerized individually to form poly-SUS and poly-SUL. These surfactants were then copolymerized at various molar ratios to produce a variety of copolymerized surfactants (CoPSs), possessing both achiral (sulfate) and chiral (leucinate) head groups. The CoPSs, poly-SUS, poly-SUL, and sodium dodecyl sulfate were characterized using several analytical techniques. The aggregation numbers of the polymeric surfactants and the partial specific volumes were determined by the use of fluorescence quenching and density measurements, respectively. These polymeric surfactants were investigated as novel pseudostationary phases in micellar electrokinetic chromatography (MEKC) for the separation of chiral and achiral solutes. Solute hydrophobicity was found to have major influence on the MEKC retention of alkyl phenyl ketones. In contrast, hydrogen-bonding ability ofbenzodiazepines is the major factor that governs their retention, but hydrophobicity has an insignificant effect on MEKC retention of benzodiazepines.
机译：合成了非手性单体表面活性剂（10-十一碳烯基硫酸钠，SUS）和手性表面活性剂（10-十一碳烯基L-亮氨酸钠，SUL），分别聚合形成聚SUS和聚SUL。然后将这些表面活性剂以各种摩尔比共聚以产生具有非手性（硫酸盐）和手性（亮氨酸）头基的各种共聚的表面活性剂（CoPS）。使用几种分析技术对CoPS，聚SUS，聚SUL和十二烷基硫酸钠进行了表征。分别通过使用荧光猝灭和密度测量来确定聚合物表面活性剂的聚集数和部分比容。这些聚合物表面活性剂已作为胶束电动色谱（MEKC）中用于分离手性和非手性溶质的新型伪平稳相进行了研究。发现溶质疏水性对烷基苯基酮的MEKC保留有主要影响。相反，苯并二氮杂类的氢键结合能力是决定其保留的主要因素，但是疏水性对苯并二氮杂类的MEKC保留没有显着影响。

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