A method of forming a structure containing a phase-separated structure, the method including applying a block copolymer composition including an organic solvent component (S) and a block copolymer in which a block of polystyrene or a polystyrene derivative is bonded to at least one kind of block to a substrate to form a layer containing the block copolymer; and phase-separating the layer containing the block. The value of an interaction distance RaPS(MPa1/2) between the Hansen solubility parameter of the organic solvent component (S) and the Hansen solubility parameter of polystyrene or the polystyrene derivative satisfying the following formula (1).
4.1≤RaPS≤9 (1)
一种形成含有相分离结构的结构的方法,该方法包括将包括有机溶剂组分(S)和嵌段共聚物的嵌段共聚物组合物(其中聚
苯乙烯或聚
苯乙烯衍
生物的嵌段与至少一种嵌段键合)施加到基底上以形成含有嵌段共聚物的层;以及将含有嵌段的层相分离。有机溶剂组分(S)的汉森溶解度参数与聚
苯乙烯或聚
苯乙烯衍
生物的汉森溶解度参数之间的相互作用距离 RaPS(MPa1/2)的值满足下式(1)。
4.1≤RaPS≤9 (1)