The properties of cation-exchange membranes based on polymeric composites of sulfonated poly(styrene-co-divinylbenzene) and polypyrrole (Ppy) are discussed. The amount of Ppy in the composites depends on the oxidant solution concentration used in the synthesis. Comparing composite membranes, the highest electronic conductivity and the best thermal stability were obtained for the composite membr...

SUMMARY Nicotine polacrilex (CAS-No. 96055-45-7) can be used as the source of nicotine in pouches and other oral delivery products such lozenges, tablets, gums. The compound is salt with Amberlite IRP64, a copolymer methacrylic acid divinylbenzene. Present study describes unique procedure to identify presence evaluate its level. In products, mixture ingredients microcrystalline cellulose (MCC),...

The separation features of a new type of PLOT U column are presented through many applications. This type of PLOT U column is coated with a divinylbenzene-ethylene glycol dimethacrylate copolymer. It has an increased polarity when compared with a conventional PLOT Q type column. The stationary phase of the PLOT U column is truly bonded, thus providing column rinsability and low column bleed.

The Bray-Liebhafsky (BL) oscillatory reaction generated in the batch reactor at 6268 C was perturbed by cobalt(II)-nitrate, supported on the macroreticular copolymer of poly-4-vinylpyridine with divinylbenzene (Co-PVPDVB). The kinetic data was analyzed of the complex pathways of the hydrogen peroxide decomposition in the examined BL reaction. The obtained results confirm that the kinetics of th...

The preparation and application of a stop and go extraction tip (StageTip) used for pre-purification of sample solutions for LC-MS/MS analysis of DNA adducts was simplified and improved to increase throughput while maintaining high adduct selectivity. It was demonstrated that the StageTip composed of two sheets of a poly(styrene-divinylbenzene) copolymer disk could be easily prepared and proved...