Layered Silicates by Swelling of AMH-3 and Nanocomposite Membranes (pages 552–555)
Sunho Choi, Joaquin Coronas, Edgar Jordan, Weontae Oh, Sankar Nair, Frank Onorato, Daniel F. Shantz and Michael Tsapatsis
Article first published online: 26 NOV 2007 | DOI: 10.1002/anie.200703440
Filling in: A new layered silicate material is prepared from a 3D porous silicate framework (AMH-3) by a novel procedure involving ion exchange and sequential intercalation. Layers of swollen AMH-3 are incorporated into a polymer, resulting in a mixed-matrix nanocomposite (see picture). The room-temperature hydrogen/carbon dioxide ideal selectivity of the swollen nanocomposite membranes is improved by a factor of two compared to the pure polymer.