PREPARATION OF 4-VINYLPYRIDINE AND DIVINYLBENZENE POROUS LAYER OPEN-TUBULAR COLUMNS BY IN-SITU COPOLYMERIZATION

A new type of polar porous polymer glass capillary column, named OPPLO T-S, was prepared by in situ copolymerization of 4-vinylpyridine and d ivinylbenzene. Its chemical composition was found to be similar to tha t of Porapak S. The OPPLOT-S columns performed very efficiently in ana lysing alcohols, hydrocarbons, nitriles, amines, polar and apolar mixt ures and permanent gases. They can provide good separations of NH3-H2O , CH3OH-H2O and CO-CH4-CO2 in a relatively short time under general co nditions. The polarities of capillary columns were evaluated by using the Rohrshneider and McReynolds constants.