## 3 Results and Discussion
### Phase Change Properties of Electro-Sprayed mPCM
In this context, the more volatile the solvent of the working solution, the more PCM is entrapped in the microparticles. Furthermore, the calculated loading content of \(n\)-eicosane when working with chloroform is quite the same as those obtained with \(n\)-hexadecane and ethyl acetate. Higher encapsulation efficiencies are obtained. Figure 4: Differential scanning calorimeter (DSC) curves of \(n\)-eicosane, neat PCL microspheres and a series of \(n\)-eicosane/PCL microcapsules obtained from different solvents with different mass ratios between \(n\)-eicosane and PCL. \begin{table}
\begin{tabular}{c c c c c c c c c c c c c} \hline \hline \multicolumn{2}{c}{**Sample Label**} & \multicolumn{2}{c}{**Latent Heat (\(\mathbf{\beta}\)-\(\mathbf{1}\))**} & \multicolumn{2}{c}{\(\boldsymbol{T_{\text{onset}}}\) (\(\mathbf{C}\))} & \multicolumn{2}{c}{\(\boldsymbol{T_{\text{or}}}\) (\(\mathbf{C}\))} & \multicolumn{2}{c}{\(\boldsymbol{T_{\text{on}}}\) (\(\mathbf{C}\))} & \multicolumn{2}{c}{\(\boldsymbol{T_{\text{on}}}\) (\(\mathbf{C}\))} & \multicolumn{2}{c}{\(\boldsymbol{LC}\) (\%)} & \multicolumn{2}{c}{\(\boldsymbol{X_{\text{(obs)}}}\) (\%)} & \multicolumn{2}{c}{\(\boldsymbol{X_{\text{(obs)}}}\) (\%)} \\ \hline \(n\)-hexadecane & heating & \(199.4\pm 2.2\) & & 17.9 & & 20.7 & & 23.7 & & & \\  & cooling & \(195.9\pm 4.7\) & & 16.2 & & 16.0 & & 13.0 & & & & \\ \hline PCL-EA & heating & & \(57.0\pm 1.1\) & & 54.9 & & 56.4 & & 58.5 & & & \\  & cooling & & \(54.7\pm 1.3\) & & 41.2 & & 39.5 & & 37.2 & & & \\ \hline \(n\)-hexadecane & heating & \(52.1\pm 7.3\) & \(32.5\pm 1.5\) & 17.7 & 55.0 & 19.9 & 56.2 & 20.2 & 57.7 & \(26.1\pm 3.7\) & \(87.1\pm 12.2\) & \(33.3\pm 1.5\) & \(31.5\pm 1.5\) \\ /PCL(30/70)-EA & cooling & \(51.7\pm 6.6\) & \(33.6\pm 3.9\) & 16.0 & 41.5 & 15.9 & 39.9 & 14.7 & 37.1 & & & \\ \hline \(n\)-hexadecane & heating & \(88.7\pm 4.1\) & \(25.0\pm 0.6\) & 17.6 & 55.0 & 19.2 & 56.2 & 21.2 & 57.8 & \(44.5\pm 2.0\) & \(89.0\pm 4.1\) & \(35.8\pm 0.8\) & \(32.0\pm 0.7\) \\ /PCL(30/50)-EA & cooling & \(88.1\pm 1.8\) & \(25.7\pm 0.5\) & 16.1 & 40.9 & 16.4 & 38.7 & 14.0 & 36.0 & & \\ \hline \(n\)-hexadecane & heating & \(113.2\pm 7.2\) & \(24.1\pm 1.1\) & 17.5 & 55.0 & 19.5 & 56.2 & 22.7 & 58.4 & \(56.8\pm 3.7\) & \(81.1\pm 5.2\) & \(57.7\pm 2.8\) & \(40.0\pm 1.9\) \\ /PCL(30/50)-EA & cooling & \(111.7\pm 5.1\) & \(25.9\pm 1.8\) & 16.1 & 40.8 & 16.4 & 38.8 & 13.6 & 35.8 & & \\ \hline \(n\)-hexadecane & heating & \(59.6\pm 2.0\) & & 55.6 & & 57.6 & & 59.8 & & & \\  & cooling & \(57.2\pm 1.9\) & & 41.5 & & 37.9 & & 34.4 & & & \\ \hline \(n\)-hexadecane & heating & \(35.6\pm 0.7\) & \(31.6\pm 1.6\) & 15.9 & 54.9 & 18.1 & 56.2 & 19.1 & 57.8 & \(17.8\pm 0.4\) & \(59.4\pm 1.2\) & \(32.4\pm 1.6\) & \(27.6\pm 1.4\) \\ /PCL(30/70)-Chl & cooling & \(35.3\pm 1.0\) & \(33.2\pm 1.6\) & 13.6 & 41.2 & 12.8 & 39.0 & 11.9 & 36.1 & & \\ \hline \(n\)-hexadecane & heating & \(72.4\pm 6.6\) & \(25.0\pm 0.3\) & 17.2 & 55.0 & 19.2 & 56.3 & 21.0 & 58.0 & \(36.3\pm 0.3\) & \(72.6\pm 0.6\) & \(35.8\pm 0.4\) & \(28.1\pm 0.1\) \\ /PCL(50/50)-Chl & cooling & \(71.1\pm 0.4\) & \(26.0\pm 0.5\) & 15.8 & 41.1 & 14.8 & 39.4 & 12.4 & 36.6 & & \\ \hline \(n\)-hexadecane & heating & \(99.4\pm 5.7\) & \(17.0\pm 1.5\) & 17.5 & 55.0 & 19.5 & 56.2 & 21.0 & 57.7 & \(49.9\pm 2.8\) & \(71.2\pm 4.1\) & \(40.5\pm 2.7\) & \(24.2\pm 2.2\) \\ /PCL(70/30)-Chl & cooling & \(96.9\pm 4.7\) & \(15.8\pm 0.4\) & 15.7 & 41.0 & 15.5 & 38.8 & 13.8 & 35.6 & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Thermal properties of \(n\)-hexadecane, neat poly(caprolactone) (PCL) microspheres and a series of \(n\)-hexadecane/PCL microcapsules obtained from ethyl acetate and chloroform solutions at three weight ratios between \(n\)-hexadecane and PCL.