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Updated: Aug 10, 2026

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Published on: February 7, 2017
In-situ polymerized PLOT columns III: divinylbenzene copolymers and dimethacrylate homopolymers
1SETI Institute, NASA, Ames Research Center, Moffett Field, California 94035-1000,USA.
Abstract:
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.
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