| Titre : | Release studies of thymol and p - cymene from polylactide microcapsules (2012) |
| Auteurs : | Isabel M. Martins, Auteur ; Sofia N. Rodrigues, Auteur ; Maria F. Barreiro, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 51 N° 35, Septembre 2012) |
| Article en page(s) : | pp. 11565-11571 |
| Note générale : | Industrial chemistry |
| Langues : | Anglais |
| Tags : | Microcapsule |
| Résumé : | The objective of this work is to access the release behavior of thymol and p-cymene used as model core materials with PLA microcapsules. The microcapsules were obtained by a coacervation process developed in a previous work and present a spherical shape with mean particle size of 25 and 37 μm for thymol and p-cymene, respectively. The results have shown that the release of thymol and p-cymene is faster in the first hour keeping almost constant in the subsequent days. The diffusion coefficient in the first hour of release was 1.99 × 10―16 m2/s for thymol and 4.34 × 10―16 m2/s for p-cymene. However, the diffusion was slower if considering a period of 5 days being the diffusion coefficients of 3.34 × 10―19 m2/s for thymol and 3.45 X 10―18 m2/s for cymene. |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=26324807 |
