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首页> 外文期刊>Journal of Applied Polymer Science >A novel method to prepare chitosan/montmorillonite nanocomposites
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A novel method to prepare chitosan/montmorillonite nanocomposites

机译：一种制备壳聚糖/蒙脱土纳米复合材料的新方法

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摘要

We are proposing a novel method to prepare chitosan/montmorillonite nanocomposites. The montmorillonite (MMT) clay was excavated from the mountainside of eastern Taiwan. After being purified, it was incorporated with potassium persulfate (KPS) through the intercalation process. As the KPS-incorporated MMT was dispersed in the acidified aqueous solution of chitosan, the KPS instantly reacted with the chitosan, resulting in the cleavage of polymer chains and exfoliation of MMT as well. After removing the unexfoliated MMT, solutions were cast to form a film of chitosan/MMT nanocomposite. Interestingly, the exfoliated MMT layers were found to flatten out in parallel with the surface, which not only increased the tensile strength of the chitosan film but also hindered degradation in the vitro test. (c) 2005 Wiley Periodicals, Inc.
机译：我们正在提出一种制备壳聚糖/蒙脱土纳米复合材料的新方法。蒙脱石（MMT）粘土是从台湾东部的山腰挖出的。纯化后，通过插层法将其与过硫酸钾（KPS）合并。由于掺有KPS的MMT分散在壳聚糖的酸化水溶液中，因此KPS立即与壳聚糖反应，导致聚合物链断裂和MMT脱落。除去未剥落的MMT后，浇铸溶液以形成壳聚糖/ MMT纳米复合材料薄膜。有趣的是，发现剥落的MMT层与表面平行变平，这不仅增加了壳聚糖膜的拉伸强度，而且在体外测试中阻碍了降解。 （c）2005年Wiley Periodicals，Inc.

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