000030694 001__ 30694 000030694 005__ 20170831220654.0 000030694 037__ $$aTAZ-TFM-2015-999001 000030694 041__ $$aeng 000030694 1001_ $$aVera Alaya, Iván 000030694 24500 $$aCharacterization of polycaprolactone/mesoporous silica composite membranes 000030694 260__ $$aZaragoza$$bUniversidad de Zaragoza$$c2015 000030694 506__ $$aby-nc-sa$$bCreative Commons$$c3.0$$uhttp://creativecommons.org/licenses/by-nc-sa/3.0/ 000030694 520__ $$aIn the present project polycaprolactone (PCL) with mesoporous silica (MCM 41) as filler based membranes were prepared and characterized. PCL was chosen because it is biocompatible, biodegradable and has an excellent tensile strength. Because of these characteristics PCL has found diverse applications in several fields: packaging, tissue engineering, drug delivery, etc. MCM-41 is a mesoporous material with hexagonal arrangement of uniform mesopores, highly specific surface (up to 1500 m2/g), and adjustable pore diameter (2 10 nm). Composite membranes were prepared by casting and solvent evaporation method. The inorganic loading of the membranes was measured by Thermogravimetric Analysis (TGA) while structure and morphology were analyzed by Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscope (SEM). Permeability test were carried out in a home-made experimental plant. The gases used for permeation were oxygen and carbon dioxide. Theoretical and experimental selectivity were compared. Incorporating MCM-41 nanoparticles reduced O2 and CO2 permeation around 20% and 80% respectively, compared to pristine PCL. Also, incorporating these nanoparticles functionalized with EPTES caused a greater decrease in O2 and CO2 permeation, 26% and 90% respectively. For both composite membranes a higher O2/CO2 selectivity was obtained. 000030694 521__ $$aMáster Universitario en Materiales Nanoestructurados para Aplicaciones Nanotecnológicas (Nanostructured Materials for Nanotechnology Applications) 000030694 540__ $$aDerechos regulados por licencia Creative Commons 000030694 700__ $$aIrusta Alderete, Silvia$$edir. 000030694 7102_ $$aUniversidad de Zaragoza$$bIngeniería Química y Tecnologías del Medio Ambiente$$cIngeniería Química 000030694 8560_ $$f588742@celes.unizar.es 000030694 8564_ $$s2780030$$uhttps://zaguan.unizar.es/record/30694/files/TAZ-TFM-2015-001.pdf$$yMemoria (eng)$$zMemoria (eng) 000030694 909CO $$ooai:zaguan.unizar.es:30694$$pdriver$$ptrabajos-fin-master 000030694 950__ $$a 000030694 951__ $$adeposita:2015-04-21 000030694 980__ $$aTAZ$$bTFM$$cCIEN