SEM and TEM images of the products
indicated that citronellal-encapsulated nanospheres (diameter
between 200 and 450 nm) were formed at starting polymer
concentrations of ≤16,000 ppm while at 32,000 ppm citronellalencapsulated
microparticles (diameter around 1–2 m) were
obtained together with some non-dispersible polymeric masses
mixed with citronellal oil (gum-likematerial).