Clay modification with thermally stable ionic liquids

Cationic montmorillonite clays can be modified by ion exchange with ionic liquids. Literature data on their modification by a variety of cations of different molecular weights, including those present in thermally stable phosphonium-based ionic liquids, are presented and compared with data from commercial organoclays. Examples of polyolefin nanocomposites containing IL-modified montmorillonite are also presented. It appears, overall, that the relatively low melt-processing temperatures of the polyolefin composites do not permit full demonstration of the beneficial effects of the thermally stable phosphonium ionic liquid intercalants versus commercial modifiers, which are more prone to thermal... [Pg.155]