Chitosan-based membranes with different ionic crosslinking density for pharmaceutical and industrial applications
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- 作者：Magdalena Gierszewska ; mgd@chem.uni.torun.pl" class="auth_mail" title="E-mail the corresponding author ; Jadwiga Ostrowska-Czubenko jocz@chem.uni.torun.pl" class="auth_mail" title="E-mail the corresponding author
- 关键词：Polymer membrane ; Chitosan ; Tripolyphosphate ; Ionic crosslinking density ; State of water
- 刊名：Carbohydrate Polymers
- 出版年：2016
- 出版时间：20 November 2016
- 年：2016
- 卷：153
- 期：Complete
- 页码：501-511
- 全文大小：2481 K
文摘
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The effect of pH of TPP crosslinking solution on molecular and supermolecular structure of chitosan membrane was revealed.
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pH of crosslinking solution affected TPP content, crosslinking density and hydrophilicity of the membrane.
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Three types of water were found in Ch and Ch/TPP membranes: non freezing, freezing free and freezing bound water.
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State of water in Ch and Ch/TPP membranes depended on molecular and supermolecular structure of membranes.
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Molecular weight of chitosan did not affect the water state.