Abstract：
Inspired by animals with a slippery epidermis, durable slippery antibiofouling coatings with liquid-like wetting buckled surfaces are successfully constructed in this study by combining dynamic-interfacial-release-induced buckling with self-assembled silicon-containing diblock copolymer (diBCP). The core diBCP material is polystyrene-block-poly(dimethylsiloxane) (PS-b-PDMS). Because silicon-containing polymers with intrinsic characters of low surface energy, they easily flow over and cover a surface after it has undergone controlled thermal treatment, generating a slippery wetting layer on which can eliminate polar interactions with biomolecules. Additionally, microbuckled patterns result in curved surfaces, which offer fewer points at which organisms can attach to the surface. Different from traditional slippery liquid-infused porous surfaces, the proposed liquid-like PDMS wetting layer, chemically bonded with PS, is stable and slippery but does not flow away. PS-b-PDMS diBCPs with various PDMS volume fractions are studied to compare the influence of PDMS segment length on antibiofouling performance. The surface characteristics of the diBCPs─ease of processing, transparency, and antibiofouling, anti-icing, and self-cleaning abilities─are examined under various conditions. Being able to fabricate ecofriendly silicon-based lubricant layers without needing to use fluorinated compounds and costly material precursors is an advantage in industrial practice.
摘要：
受表皮光滑的动物的启发，在这项研究中，通过将动态界面释放诱导的屈曲与自组装的含硅二嵌段共聚物（diBCP）相结合，成功地构建了具有液体状润湿屈曲表面的耐用光滑抗生物结垢涂层。核心diBCP材料是聚苯乙烯-嵌段-聚(二甲基硅氧烷)(PS-b-PDMS)。由于含硅聚合物具有低表面能的固有特性，在经过受控热处理后，它们很容易溢出并覆盖表面，产生光滑的润湿层，在其上可以消除与生物分子的极性相互作用。此外,微屈曲图案导致曲面，它提供了更少的生物体可以附着到表面的点。与传统的光滑液体注入多孔表面不同，拟议的液体状PDMS润湿层，与PS化学键合，既稳定又滑，但不会流走。研究了具有各种PDMS体积分数的PS-b-PDMSdiBCP，以比较PDMS段长度对抗生物污染性能的影响。diBCP的表面特性─易于加工，透明度，和抗生物污染，防冰,和自我清洁能力─在各种条件下进行检查。能够制造环保的硅基润滑剂层而不需要使用氟化化合物和昂贵的材料前体是工业实践中的优势。
