Polymerised multiple emulsion template yielding solid P2VP microcapsules.

<p>(<b>a-d</b>) Optical microscopy of microcapsules formed from polymerisation of the oil phase of the multiple emulsion template. (<b>e</b>) SEM analysis of the loaded microcapsules (<b>f</b>) Size measurement using light scattering, average distribution expressed as volume (%) (n = 10), of the microcapsules ranging from 2–100 <b>μ</b>m. The smaller peak around 1 <b>μ</b>m is a by-product formed of solid polymer particles containing no active species.