Nanoscale dot patterns are important in various fields. However, it is still a challenge to fabricate ordered nanopatterns on substrates through a polymer self‐assembly approach. In this work, it is reported that polypeptide‐based rod‐coil block copolymers can self‐assemble into surface micelles on substrates, thus forming dot nanopatterns. The size of the surface micelles is readily adjusted by the degree of the polymerization of the block copolymers. It is found that most of the surface micelles are in a sixfold coordinated lattice, indicating an ordered array feature. Defects such as fivefold coordination arrays and sevenfold coordination arrays are also observed, which are derived from the nonuniform size of the micelles and the existence of nonspherical micelles. The experimental findings are well modelled by dissipative particle dynamics theoretical simulations, and the simulations provide more detailed information, such as the packing manner of the polymer chain in the surface micelles.

中文翻译：

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由棒材-嵌段共聚物在基板上自组装的点纳米图案

纳米级点图案在各个领域都很重要。然而，通过聚合物自组装方法在基板上制造有序的纳米图案仍然是一个挑战。在这项工作中，据报道基于多肽的棒-线圈嵌段共聚物可以自组装成基底上的表面胶束，从而形成点纳米图案。可通过嵌段共聚物的聚合度容易地调节表面胶束的大小。发现大多数表面胶束处于六重配位晶格中，表明有序的阵列特征。还观察到诸如五重配位阵列和七重配位阵列的缺陷，这是由于胶束尺寸不均匀和存在非球形胶束而引起的。