含氟硅嵌段共聚物本体、表面微纳米结构的形成规律及表面性质

项目名称： 含氟硅嵌段共聚物本体、表面微纳米结构的形成规律及表面性质

项目编号： No.21276243

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 化学工业

项目作者： 易玲敏

作者单位： 浙江理工大学

项目金额： 80万元

中文摘要： 超双疏表面在纺织品自清洁、轮船外壳防污、石油管道输送减阻等领域具有非常广阔的应用前景。但目前制备的超双疏表面大多稳定性差，很容易因损伤表面微纳米结构与表面化学组成而失去其超双疏功能。依据嵌段共聚物独特的自组装行为、氟硅的低表面能与疏油特性，本项目拟构建一种具有多尺度微纳米结构的、物理化学性质持久稳定的超双疏含氟硅嵌段共聚物表面。其中，通过以聚[甲基(3,3,3-三氟丙基)硅氧烷]分别与聚苯乙烯、聚甲基丙烯酸甲酯的AB型两嵌段共聚物为研究对象，系统性地考察这两种嵌段共聚物的微相分离热力学，建立微相分离结构模型，并结合共聚物的表面微观形貌与表面性质研究，获得链段间的热力学相互作用影响含氟硅嵌段共聚物本体、表面微纳米结构与表面性质的一般规律，并利用静电纺丝技术制备得到物理化学性质持久稳定的超双疏表面。

中文关键词： 氟硅；嵌段共聚物；微相分离；静电纺丝；超双疏

英文摘要： Superamphiphobic surfaces have a broad range of potential applications including self-cleaning textiles, antifouling coatings of ship hulls, reduction of drag in crude oil transfer, and so on. However, most of the artificial superamphiphobic surfaces have low stability, and they will lose the superamphiphobic properties with the changing of surface micro-/nanostructures and chemical composition by mechanical damage. In this project, based on the unique self-assembly behavior of block copolymers and the characteristics of low surface energy and good oil resistance of fluorosilicones, the fluorosilicone-containing block copolymers will be used to fabricate superamphiphobic surfaces with multilength scale micro-/nanostructures and long durability of physical and chemical properties. In particular, two kinds of well-defined AB-type fluorosilicone- containing block copolymers, poly[methyl(3,3,3-trifluoropropyl)siloxane]-b- polystyrene and poly[methyl(3,3,3-trifluoropropyl)siloxane]-b-poly(methyl methacrylate) diblock copolymers, will be synthesized and investigated in this project. By a systematic study on the microphase-separated thermodynamic behavior of the block copolymers, some microphase-separated structure models will be established for the fluorosilicone-containing block copolymers. And then, by the investiga

英文关键词： fluorosilicone；block copolymers；microphase separation；electrospinning；superamphiphobicity