Biomimetic polymeric membrane for proton transport channeled by self-columnar assembly and sandwiched with a sodium alginate hydrogel layer

Identifier:  TFM:591

Handle: https://hdl.handle.net/20.500.11797/TFM591

Authors:  Tapusa, Ana Maria

Abstract:
Poly (epichlorohydrin-co-ethylene oxide) (PECH-co-EO), was modified with mesogenic potassium 3,4,5-tris[4-(n-dodecan-1-yloxy) benzyloxy] benzoate (TAPER group) units and characterized for the production of membranes for ionic transport. Different degrees of modifications were achieved: 68% and 100% in regard to the epichlorohydrin units. The monomers involved in the TAPER’s group synthesis, the TAPER group and the obtained modified polymer were characterized by 1H and 13C nuclear magnetic resonance (NMR). This last one product was also characterized by differential scanning calorimetry (DSC) and polarized optical microscopy (POM). Finally, material based on un-crosslinked virgin sodium alginate was synthesized and different conditions were used for their crosslinking. The crosslinking degree of sodium alginate films was approach by FTIR and water uptake experiments were made.