仿贻贝黏附行为固载温敏微球制备智能开关膜的研究

提出一种仿贻贝黏附行为固载温敏微球制备智能开关膜的新方法,通过聚多巴胺的超强黏附作用，将具有聚多巴胺层的温敏微球稳定固载到基材膜膜孔表面，形成温敏智能开关膜。该方法有望实现开关结构可控构筑、开关效果显著以及开关性能稳定的温敏智能膜的简单制备。重点研究聚多巴胺涂层在温敏微球表层上可控构筑的条件、聚多巴胺表层对微球温敏行为的影响、以及具有聚多巴胺表层的温敏微球黏附固载在基材膜孔内的稳定性，探明固载温敏微球的膜开关性能和温敏响应跨膜传质动力学特性的调控规律。研究结果将为新型环境刺激响应智能开关膜的简易可控制备以及膜表面功能化提供新途径和理论基础。

Inspired by the adhesion behavior of marine mussels based on the strong adhesivity of polydopamine, in this project we propose a novel strategy to fabricate thermo-responsive gating membranes by simply coating and anchoring responsive nanogels with polydopamine surface layer directly and robustly on the pore surface of porous membrane substrates. With this strategy, it is easy to fabricate thermo-responsive smart gating membranes with controllable gating structures, remarkable gating effects and stable gating performances. The formation of polydopamine surface layer on the thermo-responsive nanogels and the temperature-responsive characteristics of the polydopamine-coated nanogels will be investigated systematically. The anchoring stability of the polydopamine-coated nanogels on the porous membrane substrates will be studied experimentally. The thermo-responsive gating property and the mass transfer kinetics of the smart gating membranes with responsive nanogels as functional gates will be investigated thoroughly. This work will create new opportunities and theoretical basis for design and easily fabrication of environmental-responsive smart gating membranes and functionalization of the membrane surfaces.