Unusual Multilayered Structures in Poly(ethylene oxide)/Laponite Nanocomposite Films
Unusual Multilayered Structures in Poly(ethylene oxide)/Laponite Nanocomposite Films
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DOI：
10.1002/marc.200400489
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发表时间：
2005-02
影响因子：
4.6
通讯作者：
Avinash Dundigalla;S. Lin‐Gibson;V. Ferreiro;Matthew M. Malwitz;G. Schmidt
中科院分区：
文献类型：
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作者：
Avinash Dundigalla;S. Lin‐Gibson;V. Ferreiro;Matthew M. Malwitz;G. Schmidt
用扫描电子显微镜、原子力显微镜、光学显微镜和X射线散射等方法研究了聚氧化乙烯(PEO)和膨润土在透明纳米复合膜中的异常结构。每种方法对结构特征的不同方面都很敏感，它们一起测量所产生的形态和剪切诱导的取向。在纳米尺度上，粘土颗粒呈束状取向，聚合物结晶度受到抑制。显微镜导致在微米尺度上观察到意想不到的高度定向的多层膜。
The unusual structure of poly(ethylene oxide) (PEO) and Laponite clay in transparent nanocomposite films was investigated using scanning electron, atomic force, and optical microscopy, and X-ray scattering. Each method is sensitive to different aspects of structural features and together they measure the resulting morphology and shear-induced orientation. On nanometer length scales, clay platelets were found to orient in bundles while polymer crystallinity was suppressed. Microscopy led to the observation of unexpected and highly oriented multilayers on the micron length scale.