Neutron spin echo (NSE) was employed to study the dynamics of a variet
y of microemulsion phases. Starting from the droplet phase, we present
very recent results on the lamellar and sponge (L3) phases. Combining
the well-known contrast-variation method of small-angle neutron scatt
ering (SANS) with the unique energy resolution of NSE we can separate
motions which are otherwise undetectable. Combining the static and dyn
amical experiments, microscopic parameters like the bending rigidity (
K) could be deduced. We find, for example, that the local dissipation
is 4-6 times higher than would be predicted from the solvent viscositi
es.