特殊润湿性表面是聚合物界面科学领域的前沿课题，在防污、抗冰、减阻、各向异性自清洁等方面具有广阔的应用前景。通过发展简便、高效的修饰策略，构建耐久的、润湿性能可调控的表面涂层具有重要意义。本项目拟综合运用分子结构设计和光触“grafting-onto”ATRP，合成含二苯甲酮(Bp)光反应末端、笼形聚倍半硅氧烷(POSS)和聚二甲基硅氧烷(PDMS)结构单元的瓶刷状聚合物，进而在多种基材表面实现聚合物刷涂层的共价光致锚定。在此基础之上，我们将精确调控结构单元的比例、序列，诱导涂层产生丰富的微相分离形貌，明确刚性POSS和柔性PDMS结构单元的协同组装机制，并探究涂层表面润湿行为和聚合物刷分子结构之间的构-效关系。本项目的实施，将为发展耐久的、可调控的特殊润湿性表面提供新的构建方法和理论支撑。

Special-wettability surface is a frontier subject in the field of polymer interface science, and has promising application prospect in anti-fouling, anti-icing, drag-reduction and anisotropic self-cleaning. It is significant to develop facile and efficient modification strategy for fabricating durable surface coating with adjustable wettability. In this project, by comprehensively utilizing molecular structure design and light-induced “grafting-onto” ATRP, the bottle-brush polymer containing benzophenone (Bp) photo-reactive terminal, polysilsesquioxane (POSS) and polydimethylsiloxane (PDMS) units is synthesized and applied to construct polymer brush coating on various substrates through covalent photo-immobilization. And on this basis, we will precisely adjust the ratio and sequence of constitutional units to guide the coating to generate multiple microphase-separation morphologies, clarifying the cooperative assembly mechanism of rigid POSS and soft PDMS units, as well as investigating the relationship between the polymer brush structure and the coating surface wettability. This project will bring new fabricating method and theoretical support for the development of durable and adjustable special-wettability surface.