Reversible control of ordering transitions at aqueous/liquid crystal interfaces using functional amphiphilic polymers

Functional amphiphilic polymers designed to assemble at interfaces between a nematic liquid crystal and immiscible aqueous phases trigger ordering transitions that result in changes in the optical appearance of the liquid crystal (see figure and cover). The resulting polymer-functionalized interfaces respond reversibly to changes in the pH of aqueous solutions and suggest approaches to the design of fluid interfaces that respond actively or reversibly to a broad range of environmental stimuli.