Scaling behavior of nanopatterned polymer brushes.
Scaling behavior of nanopatterned polymer brushes.
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DOI：
10.1002/smll.200600414
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发表时间：
2007-01
期刊：
影响因子：
13.3
通讯作者：
Woo‐Kyung Lee;M. Patra;P. Linse;S. Zauscher
中科院分区：
文献类型：
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作者：
Woo‐Kyung Lee;M. Patra;P. Linse;S. Zauscher
我们先前报道了通过表面引发聚合制备的聚合物和生物ACHTUNGTRENNUNG聚合物纳米结构的高度显著地取决于引发剂图案的特征足迹尺寸，即，在相同的聚合条件下，刷高度在横向尺寸小于约1 mm的足迹上显著较低。[1，2]在这里，我们分析了不同足迹大小，聚合物分子量和表面接枝密度获得的实验刷高度，使用从粗粒度模型获得的最新缩放关系。[3]我们发现实验数据和理论预测之间有很好的一致性。因此，我们的研究结果表明，缩放的预测提供了一个有用的工具，用于设计和制造的聚合物和生物大分子的纳米结构的surfaces.The聚合物刷的生长与厚度的分子尺度上从固体表面允许一个定制的材料的表面特性，赋予所需的能量，机械和电气功能。[4，5]致密聚合物刷的原位形成可以通过“接枝”方法实现，[6]其中共价连接的聚合物通过表面引发聚合（SIP）从基底生长，产生更大的堆积密度。
We previously reported that the height of polymeric and bioACHTUNGTRENNUNGpolymeric nanostructures, fabricated by surface-initiated polymerization, depends dramatically on the feature footprint-size of the initiator pattern, that is, under identical polymerization conditions, the brush height is significantly lower on footprints with lateral dimensions of less than about 1 mm.[1, 2] Here, we analyze experimental brush heights obtained for different footprint sizes, polymer molecular weights, and surface-grafting densities using recent scaling relations obtained from a coarsegrained model.[3] We found good agreement between the experimental data and the theoACHTUNGTRENNUNGretical predictions. Our results thus indicate that the scaling predictions provide a useful tool for the design and fabrication of polymeric and bio-macromolecular nanostructures on surfaces.The growth of polymer brushes with thicknesses on the molecular scale from solid surfaces allows one to tailor the surface properties of materials by imparting desirable energetic, mechanical, and electrical functionalities.[4, 5] The insitu formation of dense polymer brushes is possible through a “grafting-from” approach,[6] in which covalently attached polymers are grown by surface-initiated polymerization (SIP) from the substrate, yielding larger packing den-