Statistical variability of ultimate properties of SBR gum vulcanizates.
Statistical variability of ultimate properties for eight samples of SBR-sulfur gum vulcanizates
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Statistical variability of ultimate properties for eight samples of SBR-sulfur gum vulcanizates
Studies of divinylbenzene copolymers and dimethacrylate homopolymers indicate that the polymer pore size controls the separation of water and ammonia on porous-layer-open-tubular (PLOT) columns. To a lesser degree, the polarity of the polymers also affects the separation of a water-ammonia gas mixture. Our results demonstrate that the pore size can be regulated by controlling the cross-linking density or the chain length between the cross-linking functional groups. An optimum pore size will provide the best separation of water and ammonia.