Using a molecular engineering technique based on a tripodal triptycene-based supramolecular scaffold capable of precisely controlling molecular orientation on solid substrates, in combination with a time-domain thermoreflectance (TDTR) measurement technique, we evaluate thermal transport properties of a highly oriented long alkyl chain at the nanoscale. In the TDTR measurements, a 54nmthick film, in which two-dimensional alkyl-chain domains are stacked horizontally to the substrate surface, showed a value of out-of-plane thermal conductivity (0.210.04W m^–1 K^–1), which is in a similar range as those reported for other organic and polymer materials.

中文翻译：

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链烷烃三脚架三萜烯取向薄膜的热输运性质

使用基于三脚架基于三茂铁的超分子支架的分子工程技术，该支架能够精确控制固体基质上的分子取向，并结合时域热反射（TDTR）测量技术，我们评估了高度取向的长烷基链的热传递性质在纳米级。在TDTR测量中，厚度为54nm的薄膜（其中二维烷基链域水平地堆叠到基板表面）显示出面外热导率值（0.210.04W m ^–1 K ^–1），与其他有机和聚合物材料的报道范围相似。