强极性高聚物毛细管柱的制备与性能评价

Preparation and Evaluation of a Strong Polar Polymer Capillary Column

以强极性的丙烯腈为单体，以二乙烯苯为交联剂，采用原位聚合法一步反应制备出了强极性的ＯＰＰＬＯＴ－Ａ型高聚物毛细管柱。该柱的极性大于早先制备的ＯＰＰＬＯＴ－Ｑ，－Ｒ，－Ｓ型柱。对柱子的色谱性能进行了评价。该柱可实现对醛、酮、醇、酯、醚、腈等类化合物的分离，尤其对腈、醛的分离更好。对柱子的耐水性也进行了考察，水对柱子的保留行为不产生影响。由于该柱极性较大，因此耐温性较前述柱低，最高使用温度为２００℃。还对柱子的其它分离特性进行了考察。

A strong polar organic polymer porous layer open tubular capillary column, named OPPLOT A column, was prepared by in situ copolymerization with the strong polar acrylonitrile as monomer and divinylbenzene as cross linking agent. The polarity of the column is higher than that of the OPPLOT Q, OPPLOT R andd OPPLOT S columns which prepared previously. The performance of the OPPLOT A column was evaluated. It is effective to analyze alcohols, aldehydes, ketones, esters, ethers and nitriles etc., and especially for good separation of nitriles and aldehydes. The retention of the column is not influenced by water. The thermal stability of the OPPLOT A column (200℃) is lower than that of OPPLOT Q(250℃), R(250℃) and S(210℃).