From the viewpoint of heat storage application, encapsulation of n-hexadecane (HD) was carried out by micro-suspension copolymerizations of divinylbenzene (DVB) and acrylic monomers (butyl acrylate, BA; ethyl acrylate, EA) utilizing the selfassembling of phase separated polymer (SaPSeP) method proposed by the authors. The heat of solidification (H s) of encapsulated HD in the micron-sized, cross-linked particles was determined by differential scanning calorimeter (DSC). H s of the encapsulated HD in poly(DVB) particles was much lower than that of pure HD, but it was increased with BA or EA content copolymerized up to that of pure HD. Such an influence of encapsulation on the H s was discussed.

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