Abstract In the nonsolvent vapor atmospheres, the petal-effect superhydrophobic surface was self-assembled from conjugated poly(2,5-dibutoxy-p-phenylene). During the dissolution of the nonsolvent vapor and the evaporation of the solution, the side-chain interactions and the π–π interactions between conjugated backbones induced the formation of polymer particles, which further agglomerated and formed the network structures and radiate spherical-like hierarchical microstructures. The increase in the distribution of microspheres improved the roughness of the surface and increased the contact angles more than 150°. The network of agglomerated polymer particles were easier to be formed and induced a relatively important penetration of the water inside the pores. Therefore, the network of agglomerated polymer particles and radiate spherical-like hierarchical microstructures can form a Cassie-impregnating regime to display the petal-effect. This provides a new strategy for preparing petal-effect superhydrophobic polymer surfaces, which show significant potential for future application in the control of microdroplet and micro-fluidics.

中文翻译：

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由聚（对亚苯基）自组装的花瓣效应超疏水表面

摘要 在非溶剂蒸气气氛中，花瓣效应超疏水表面由共轭聚（2,5-二丁氧基-对亚苯基）自组装而成。在非溶剂蒸气的溶解和溶液的蒸发过程中，共轭骨架之间的侧链相互作用和π-π相互作用诱导聚合物颗粒的形成，聚合物颗粒进一步团聚形成网络结构并放射出球形的分级微结构. 微球分布的增加改善了表面的粗糙度并使接触角增加了150°以上。聚结聚合物颗粒的网络更容易形成，并引起水在孔隙内的相对重要的渗透。所以，团聚聚合物颗粒的网络和放射状球形分级微结构可以形成卡西浸渍体系以显示花瓣效应。这为制备花瓣效应超疏水聚合物表面提供了一种新策略，在未来控制微滴和微流体方面显示出巨大的应用潜力。