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

被引:19
作者
Alupei, IC [1 ]
Popa, M
Bejenariu, A
Vasiliu, S
Alupei, V
机构
[1] Lohmann & Rauscher GmbH & Co KG, Div Res Dev, D-56513 Neuwied, Germany
[2] Gh Asachi Tech Univ, Fac Chem Engn, Iasi 6600, Romania
[3] Petru Poni Inst Macromol Chem, Iasi 6600, Romania
[4] Univ Dusseldorf, Inst Organ Chem & Macromol Chem, D-40225 Dusseldorf, Germany
关键词
gellan; poly(N-vinylimidazole); interpolymer complexes; membrane; swelling degree;
D O I
10.1016/j.eurpolymj.2005.09.033
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
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. (C) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:908 / 916
页数:9
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