Most of the works with these two polymers explore the potential of the blends as a biomaterial due to their characteristics such as biocompatibility, biodegradability and low toxicity ( de Moraes and Beppu, 2013 de Moraes et al., 2014 Ming and Zuo, 2014 Zhang et al., 2015 Wang et al., 2016). The Flory-Huggins parameters of interaction of polymer-solvent and polymer-polymer were estimated using the extended equation and data of phase equilibrium, their values indicates the partial miscibility of the polymers.īlends of Silk fibroin (SF) and sodium alginate (SA) have been studied since the beginning of the 90’s years ( Liang and Hirabayashi, 1992). After phase separation, two phases were identified, one rich in SF and other rich in SA. This study explored blends with a different initial composition of SF, SA, and water (WA) at 25☌ and neutral pH. Phase separation is observed, therefore, the thermodynamic analysis of this system is important to predict the final state and composition of this blends. One of the strategies to improve the properties of these products is to prepare blends with them, which are partially miscible. Silk fibroin (SF) and sodium alginate (SA) are natural polymers used to produce biomaterials. 2Department of Chemical Engineering, Federal University of São Paulo, Diadema, Brazil.1School of Chemical Engineering, University of Campinas, Campinas, Brazil.Laise Maia Lopes 1† Mariana Agostini de Moraes 2† Marisa Masumi Beppu 1*†
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |