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Properties of n ‐eicosane‐loaded silk fibroin‐chitosan microcapsules
Author(s) -
Basal Guldemet,
Sirin Deveci Senem,
Yalcin Dilek,
Bayraktar Oguz
Publication year - 2011
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.33651
Subject(s) - fibroin , differential scanning calorimetry , coacervate , chitosan , thermogravimetric analysis , thermal stability , fourier transform infrared spectroscopy , materials science , chemical engineering , silk , thermal analysis , polymer chemistry , composite material , thermal , thermodynamics , physics , engineering
PCM microcapsules containing n ‐eicosane were prepared by complex coacervation of silk fibroin (SF) and chitosan (CHI). Chemical characterization of microcapsules was carried out using Fourier‐transform infrared (FT‐IR) spectroscopy. Thermal properties and thermal stability of microencapsulated n ‐eicosane were determined by differential scanning calorimetry (DSC) and thermal gravimetric analysis (TGA). FTIR spectra confirmed the encapsulation of n ‐eicosane within the microcapsules. Results from thermal analyses showed that microcapsules consisted of an average of 45.7 wt % n ‐eicosane, and had a thermal energy storage and release capacity of about 93.04 J/g and 89.68 J/g, respectively. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011