Lloyd M. Robeson

TL;DR: The empirical upper bound relationship for membrane separation of gases initially published in 1991 has been reviewed with the myriad of data now presently available as mentioned in this paper, which indicates a different solubility selectivity relationship for perfluorinated polymers compared to hydrocarbon/aromatic polymers.

TL;DR: In this paper, the technology involved with exfoliated clay-based nanocomposites and also include other important areas including barrier properties, flammability resistance, biomedical applications, electrical/electronic/optoelectronic applications and fuel cell interests.

TL;DR: The permeability/selectivity trade-off is discussed, similarities and differences between synthetic and biological membranes are highlighted, challenges for existing membranes are described, and fruitful areas of future research are identified.

TL;DR: A review of the fundamental scientific principles underpinning the operation of polymers for gas separations, including the solution-diffusion model and various structure/property relations, is presented in this paper.

TL;DR: In this article, a model describing the influence of temperature on the permeability/selectivity tradeoff of polymeric membranes has been developed from fundamental theoretical considerations, and the model was used to predict the influence on upper bound behavior for several gas pairs including O 2 /N 2, H 2 /H 2, CO 2 /CH 4, CO 2/N 2, H 2 2 /CO 2, and CO 2 1/H 2. The predicted upper bound shifts vertically with temperature and the direction and magnitude of the shift depend on the sizes and condensabilities of the