Such a decreasing trend is due to an increase in cross-link density, because the microspheres will become rigid, thereby reducing the free volume spaces within the polymer matrix and hence, a reduction in encapsulation efficiency is observed.
Such a decreasing trend is due to an increase in cross-linkdensity, because the microspheres will become rigid, therebyreducing the free volume spaces within the polymermatrix and hence, a reduction in encapsulation efficiencyis observed.