Deuterated ferroelectric nylon 11

Dynamic ferroelectric switching in oriented odd nylons is of interest becai have polarizationS equal to or greater than those of PVDF [l]. The hexagonal 6’ phase obtained by quenching from the melt is known to be fern However, other polymorphs of nylon 11 have the potential of dynamic pol switching. The thermodynamically stable a phase, which occurs up01 cooling from the melt, has not yet been shown to dynamically switch. H highly plasticized oriented films of the a phase, when poled in static fields hysteresis of the 4, piezoelectric coupling constant and hence seem to ferroelectric switching [2]. Ferroel&c switching in the third polymorp phase, has not previously been investigated and is reported here.