Wang Yong, Liu Zhimin, Huang Ying, Han Buxing, Yang Guanying
Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
Langmuir. 2006 Feb 14;22(4):1928-31. doi: 10.1021/la051646d.
In this work, we present a facile method for fabricating polymer thin films with micropatterned surfaces by evaporating polymer solution containing a small amount of nonsolvent of polymer in air. Poly(methyl methacrylate) (PMMA) and polystyrene (PS) films with densely packed micropores on the surfaces were fabricated. This method was also used to prepare three-dimensional PMMA films with micropatterned surfaces. The effects of nonsolvent content; evaporation temperature; and interactions between the polymer, solvent, and nonsolvent on the specific patterns were investigated, and the formation mechanism of the pores is discussed. This simple route can potentially be used, for example, in the large-scale production of patterned surfaces, three-dimensional painting, and hydrophobicity-enhancing coatings.
在本工作中，我们提出了一种简便的方法，通过在空气中蒸发含有少量聚合物非溶剂的聚合物溶液来制备具有微图案表面的聚合物薄膜。制备了表面具有密集排列微孔的聚甲基丙烯酸甲酯（PMMA）和聚苯乙烯（PS）薄膜。该方法还用于制备具有微图案表面的三维PMMA薄膜。研究了非溶剂含量、蒸发温度以及聚合物、溶剂和非溶剂之间的相互作用对特定图案的影响，并讨论了孔的形成机理。这种简单的方法有可能用于例如图案表面的大规模生产、三维涂装和疏水性增强涂层等领域。
