Composite membranes based on gellan and poly( N-vinylimidazole). Synthesis and characterization

Composite membranes based on gellan and poly( N-vinylimidazole) were prepared by using the method of solvent evaporation. In acid medium ionic interactions are established and evidenced by measurements of FTIR spectroscopy. The properties of these membranes were investigated by using elemental analy...

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Bibliographic Details
Published in:European polymer journal 2006-04, Vol.42 (4), p.908-916
Main Authors: Alupei, Iulian Corneliu, Popa, Marcel, Bejenariu, Anca, Vasiliu, Silvia, Alupei, Valentina
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Exchange resins and membranes
Forms of application and semi-finished materials
Gellan
Interpolymer complexes
Membrane
Poly( N-vinylimidazole)
Polymer industry, paints, wood
Swelling degree
Technology of polymers
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Summary:Composite membranes based on gellan and poly( N-vinylimidazole) were prepared by using the method of solvent evaporation. In acid medium ionic interactions are established and evidenced by measurements of FTIR spectroscopy. The properties of these membranes were investigated by using elemental analysis, thermogravimetric analysis, atomic force microscopy and dynamic swelling experiments. The thermic behavior of the membranes depends on the nature of interactions and swelling degree is highly dependent on pH and composition. The properties of these membranes suggest potential applications in the field of biodegradable materials or as supports for drugs in view of their controlled release.
ISSN:0014-3057
1873-1945
DOI:10.1016/j.eurpolymj.2005.09.033