Favorable physicochemical properties and unique molecular recognition capability endow triptycenebased materials with good potential as stationary phases for gas chromatography (GC). This work reports a new type of tr...Favorable physicochemical properties and unique molecular recognition capability endow triptycenebased materials with good potential as stationary phases for gas chromatography (GC). This work reports a new type of triptycene-based materials functionalized by three benzimidazolium cations with different peripheral alkyl lengths (denoted as TP-3Bim-5C and TP-3Bim-12C) and their GC separation performance. As a result, they shared high resolving performance for the naphthalene isomers but differed for the benzene derivatives with varying polarity. Moreover, their capillary columns exhibited good repeatability and thermal stability. This work presents a facile strategy for tailoring the selectivity of the TP-based stationary phases and demonstrates their promising future for chromatographic analysis.展开更多
This work presents a novel strategy for engineering a GC stationary phase with high selectivity,inertness and thermal stability by introducing the 3Dπ-rich TP moieties to the terminals of a polar chain polymer.Herein...This work presents a novel strategy for engineering a GC stationary phase with high selectivity,inertness and thermal stability by introducing the 3Dπ-rich TP moieties to the terminals of a polar chain polymer.Herein,we provide the first example,i.e.,a new TP-terminated polycaprolactone polymer(TPP)as the stationary phase for GC analyses.As demonstrated,the TPP column achieved distinctly improved inertness to fatty acids and aldehydes,and dramatically enhanced thermal stability(about 100°C higher)over the PCL column.Also,the TPP column exhibited high resolving capability towards the positional isomers of phenols,anilines and alkylated/halobenzenes and showed good potential in detecting minor impurities in chemical products.Importantly,the proposed strategy is facile,feasible and generally applicable to analogous polymers.展开更多
基金the financial support by the National Natural Science Foundation of China(No.21575013)Analysis & Testing Center, Beijing Institute of Technology
文摘Favorable physicochemical properties and unique molecular recognition capability endow triptycenebased materials with good potential as stationary phases for gas chromatography (GC). This work reports a new type of triptycene-based materials functionalized by three benzimidazolium cations with different peripheral alkyl lengths (denoted as TP-3Bim-5C and TP-3Bim-12C) and their GC separation performance. As a result, they shared high resolving performance for the naphthalene isomers but differed for the benzene derivatives with varying polarity. Moreover, their capillary columns exhibited good repeatability and thermal stability. This work presents a facile strategy for tailoring the selectivity of the TP-based stationary phases and demonstrates their promising future for chromatographic analysis.
基金the financial support by the National Natural Science Foundation of China(No.21575013).
文摘This work presents a novel strategy for engineering a GC stationary phase with high selectivity,inertness and thermal stability by introducing the 3Dπ-rich TP moieties to the terminals of a polar chain polymer.Herein,we provide the first example,i.e.,a new TP-terminated polycaprolactone polymer(TPP)as the stationary phase for GC analyses.As demonstrated,the TPP column achieved distinctly improved inertness to fatty acids and aldehydes,and dramatically enhanced thermal stability(about 100°C higher)over the PCL column.Also,the TPP column exhibited high resolving capability towards the positional isomers of phenols,anilines and alkylated/halobenzenes and showed good potential in detecting minor impurities in chemical products.Importantly,the proposed strategy is facile,feasible and generally applicable to analogous polymers.
