Block copolymer (BCP) self‐assembly is a versatile technique in the preparation of polymeric aggregates with varieties of morphologies. However, its morphology library is limited. Here, the discovery of pincushion of tubules is reported for the first time, via BCP self‐assembly of poly(4‐vinylpyridine)‐b‐polystyrene (P4VP‐b‐PS) with very high molecular weight (500 kDa) and asymmetry (2 mol% P4VP). The investigation confirms the importance of core‐forming block length on morphology control of BCP self‐assemblies, especially with respect to tubular structures. The morphology landscape of tubular structures is successfully established, where dumbbell of tubule, tubule, loose clew of tubules, tight clew of tubules, and pincushion of tubules can be prepared by adjusting the core‐forming block length. This work therefore expands the structure library of BCP self‐assemblies and opens up a new avenue for the further applications of these tubular materials.

中文翻译：

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嵌段共聚物自组装的管发现和管形形态景观的枕形

嵌段共聚物（BCP）自组装是一种制备多种形态的聚合物聚集体的通用技术。但是，其形态库是有限的。在此，发现小管报道首次的枕形的，通过BCP自组装的聚（4-乙烯基吡啶） - b -聚苯乙烯（P4VP- b‐PS）具有非常高的分子量（500 kDa）和不对称性（2 mol％P4VP）。研究证实了成核块长对BCP自组装的形态控制的重要性，特别是在管状结构方面。成功地建立了管状结构的形态学景观，可以通过调整成芯块的长度来准备小管的哑铃，小管，小管的松散提示，小管的紧提示以及枕形枕形。因此，这项工作扩展了BCP自组装的结构库，并为这些管状材料的进一步应用开辟了一条新途径。