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首页> 外文期刊>Nanotechnology >The fabrication of thin films with nanopores and nanogrooves from block copolymer thin films on the neutral surface of self-assembled monolayers
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The fabrication of thin films with nanopores and nanogrooves from block copolymer thin films on the neutral surface of self-assembled monolayers

机译：在自组装单分子层中性表面上由嵌段共聚物薄膜制备具有纳米孔和纳米凹槽的薄膜

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摘要

A simple and well-ordered fabrication procedure for polymeric thin films with nanopores and nanogrooves is described. By utilizing the neutral surface of self-assembled monolayers (SAMs) of commercially available 3-(p-methoxyphenyl) propyltrichlorosilane (MPTS), the cylindrical microdomains of PMMA of the asymmetric polystyrene-b-poly(methyl methacrylate) (PS-b-PMMA) block copolymer were oriented perpendicular to the surface due to the balanced interfacial interactions of the blocks with the surface. Thin films with perpendicularly oriented lamellae without mixed lamellae could also be fabricated by simply using a binary blend of the same asymmetric PS-b-PMMA diblock copolymer and PMMA homopolymer in the wet-brush regime up to 50% of the total PMMA weight fraction on the same neutral surface. Nanotemplates with arrays of nanopores and nanogrooves were fabricated by selective removal of PMMA domains via ultraviolet (UV) irradiation and sequential washing. SAMs of MPTS on a substrate with aluminium oxide surface were also fabricated and were used to fabricate nanoporous thin film. A thin film of PS-b-PEO with perpendicularly oriented poly(ethylene oxide) (PEO) domains on the SAMs of MPTS is also demonstrated.
机译：描述了具有纳米孔和纳米凹槽的聚合物薄膜的简单且井井有条的制造程序。通过利用可商购的3-（对甲氧基苯基）丙基三氯硅烷（MPTS）的自组装单层（SAM）的中性表面，不对称聚苯乙烯-b-聚甲基丙烯酸甲酯（PS-b-由于嵌段与表面之间的平衡界面相互作用，使得PMMA嵌段共聚物垂直于表面取向。也可以通过简单地使用相同的不对称PS-b-PMMA二嵌段共聚物和PMMA均聚物的二元共混物在湿刷方式下制备垂直取向的薄片而不混合薄片的薄膜来达到PMMA总重量分数的50％。相同的中性表面。具有阵列的纳米孔和纳米槽的纳米模板是通过紫外线（UV）辐射和顺序洗涤选择性除去PMMA域而制得的。还制备了具有氧化铝表面的基材上的MPTS SAM，并将其用于制造纳米多孔薄膜。还展示了在MPTS的SAM上具有垂直取向的聚环氧乙烷（PEO）域的PS-b-PEO薄膜。

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