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Journal of Polymer Research

Erschienen in:

01.09.2018 | ORIGINAL PAPER

Study of phase separation in blends of silk fibroin and sodium alginate in solution and in solid state

verfasst von: Laise Maia Lopes, Mariana Agostini de Moraes, Marisa Masumi Beppu

Erschienen in: Journal of Polymer Research | Ausgabe 9/2018

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Abstract

Silk fibroin (SF) and sodium alginate (SA) are natural polymers with many applications as biomaterials. It is possible to make blends with them in order to improve their properties. Those blends are partially miscible; therefore, understanding the mechanism and phase equilibrium of this system is important to better understand the interaction between these natural polymers. This work analyzed the mechanism of phase separation of SF and SA blends with different composition in solution and in the solid state (as membranes) using small angle light scattering with a He-Ne laser. Polymer interaction and conformation were investigated by Fourier-Transform Infrared Spectroscopy with Attenuated Total Reflectance (FTIR-ATR) and X-Ray Diffraction (XRD), and membrane morphology was analyzed by Scanning Electron Microscopy (SEM). SEM images showed interpenetrated globules in the matrix. Light scattering profile for blends in solution and in the solid state showed a peak of intensity suggesting that phase separation occurs by spinodal decomposition.

Vorheriger Artikel Asynchronous synthesis method of waterborne polyurethane with the differences of structural features and thermal conductivity

Nächster Artikel Fabrication of fullerenol-incorporated thin-film nanocomposite forward osmosis membranes for improved desalination performances

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Titel: Study of phase separation in blends of silk fibroin and sodium alginate in solution and in solid state
verfasst von: Laise Maia Lopes
Mariana Agostini de Moraes
Marisa Masumi Beppu
Publikationsdatum: 01.09.2018
Verlag: Springer Netherlands
Erschienen in: Journal of Polymer Research / Ausgabe 9/2018
Print ISSN: 1022-9760
Elektronische ISSN: 1572-8935
DOI: https://doi.org/10.1007/s10965-018-1594-3

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