Abstract
―Poly(e-caprolactone) nano/microcapsules(nmcPCL) containing phytoncide oil were synthesized by emulsion diffusion method using ethyl acetate and poly(vinyl alcohol) (PVA) as an organic solvent and an emulsion stabilizer respectively. The influence of the degree of saponofication of the PVA and the we ight ratio of core to wall materials was investigated to design nanocapsules in terms of particle size, morphology, and emulsi on stability. The encapsulated nmcPCL were characterized by FT- IR spectrometry, particle size analyzer and scanning electron micr oscope. Mean size of nanocapsules prepared with PVA with a degree of saponofication of 87% was smaller than those of PVA w ith a degree of saponofication of 98.5% and the mean particle size of the capsules decreased with increasing core/shell ratio.
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