This work describes the investigation of utilizing a chain-typed thiophene-based π-conjugated polymer, i.e., poly(3-hexylthiophene) (P3HT), as the stationary phase for gas chromatography (GC). The P3HT column was statically prepared and investigated for its column efficiency, polarity, separation performance, repeatability and thermal stability. As a result, it showed moderate polarity and column efficiencies of 3260, 3310 and 3790 plates/m for 1-octanol, naphthalene and n-dodecane, respectively. As evidenced, it exhibited high-resolution performance for aliphatic and aromatic isomers, including those critical pairs such as phenanthrene/anthracene and p-/m-benzenediol isomers. Moreover, it displayed stronger retention for alkanes, alcohols and phenols in comparison to the polysiloxane stationary phase with close polarity. Also, the P3HT column had good repeatability and reproducibility with the RSD values less than 0.05% for run-to-run, 0.17–0.54% for day-to-day and 2.7–5.2% for column-to-column, and good thermal stability up to 260 °C. This work demonstrates the promising future of the thiophene-based polymer and its derivatives in separation science.

这项工作描述了利用链型噻吩基π共轭聚合物i的研究。例如，聚（3-己基噻吩）（P3HT）作为气相色谱（GC）的固定相。P3HT色谱柱是静态制备的，并对其色谱柱的效率，极性，分离性能，可重复性和热稳定性进行了研究。结果，对于1-辛醇，萘和正十二烷，其极性和柱效分别为3260、3310和3790板/ m 。如所证明的，它对脂族和芳族异构体（包括那些关键对，如菲/蒽和p- / m）表现出高分辨率的性能。-苯二醇异构体。此外，与极性紧密的聚硅氧烷固定相相比，它对烷烃，醇和酚的保留力更强。另外，P3HT色谱柱具有良好的可重复性和重现性，运行之间的RSD值分别小于0.05％，日常运行的RSD值小于0.17-0.54％，色谱柱间的RSD值小于2.7-5.2％，并且具有良好的热稳定性高达260°C的稳定性。这项工作证明了基于噻吩的聚合物及其衍生物在分离科学中的广阔前景。