Formation of regularly spaced wetting ridges at 1μm intervals on the surface of a liquid-crystalline polymer
Formation of regularly spaced wetting ridges at 1μm intervals on the surface of a liquid-crystalline polymer
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在液晶聚合物表面以 1μm 间隔形成规则间隔的润湿脊
DOI：
10.1021/la303335x
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
& Watanabe J.
中科院分区：
文献类型：
--
作者：
Okuda S.;Yoshihara S.;Kang S.;Tokita M.;& Watanabe J.
当以20 cm/s的速度浸入水中时，覆盖在玻璃支架上的液晶（LC）聚合物熔体显示出由“粘断”现象引起的显著湿润脊状图案。以1 μm的间隔形成一系列平行的、有规则间隔的0.2 μm高的湿润脊，并在1 × 2 cm2的大范围内持续形成。这些脊线的作用就像窄线衍射光栅，类似于将白光分成不同颜色光谱的棱镜。这一过程为低成本、高通量的聚合物控制纳米制造提供了新的见解。
A liquid-crystalline (LC) polymer melt coating a glass support shows a remarkable wetting ridge pattern resulting from a “stick-and-break” phenomenon when submerged into water at a velocity of 20 cm/s. A series of parallel, regularly spaced wetting ridges of 0.2 μm height are formed perpendicular to the advancing direction of the plate at 1 μm intervals, and the pattern continues over a wide area (1 × 2 cm2). The ridges function as a narrow line diffraction grating, similar to a prism that separates white light into the spectrum of colors. This process provides new insight into the controlled nanofabrication of polymers that is low-cost and high-throughput.