基于非对称纳米通道的嵌段共聚物受限自组装研究

The self-assembled nanostructures of block copolymers (BCPs) have great potentials for various applications in the fields of drug delivery and controlled release, sensing, catalysis and others. The influence of confinement environment on the self-assembly behaviors and structures of BCPs is widely existed. It has great practical and theoretical values for building novel nanostructures and functional polymer materials, which has attracted extensive research interests in recent years. At present, however, there are few studies on the self-assembled block copolymers with functional and responsive properties, and the effect of confined space on the functional properties of the self-assembly needs to be further investigated. Herein, we will carry out research on self-assembled block copolymers confined in asymmetric nanochannels. We will pour pH-responsive BCPs into asymmetric nanochannels to accomplish confined self-assembly, and the polymeric self-assemblies with various structures can be tailored with the addition of homopolymers, and then mesoporous materials can be prepared by selective solvent swelling of the structured NRs. The ion transport properties will be characterized by measuring the transmembrane currents or potentials of the self-assembled nanochannels. The application of the pH-responsive polymeric self-assemblies in advanced energy conversion system will be discussed in detail, as well as provide a basis for building new energy conversion devices. This project will greatly promote the research of functional and stimuli-responsive self-assembled BCPs for the first time by combinations of the asymmetric nanochannels with the self-assembly of stimuli-responsive BCPs, which has important academic significance and application value.

嵌段共聚物自组装形成的纳米结构在药物递送、传感、催化等领域有着广阔的应用前景。受限环境对嵌段共聚物自组装行为及组装体结构的影响广泛存在，对于构筑新颖组装结构和制备功能性聚合物材料具有很强的现实意义和理论价值，近年来引起广泛的研究兴趣。然而，目前关于具有功能性及响应性的嵌段共聚物受限自组装的研究还很少，受限效应对组装体功能性的影响需要深入研究。本项目拟开展基于非对称纳米通道的嵌段共聚物受限自组装研究。将具有pH响应的嵌段共聚物在纳米通道内自组装，通过改变共聚物与均聚物的比例获得不同结构的组装体，并在此基础上制备介孔纳米纤维。研究离子在受限自组装通道中的输运性质，探讨其应用于先进能源转换体系的可能性，为构筑基于嵌段共聚物自组装的新型能源转换器件提供依据。本项目首次将非对称纳米通道用于刺激响应性嵌段共聚物的受限自组装，将推动具有功能性及响应性共聚物受限自组装的研究，具有重要的学术意义和应用价值。

嵌段共聚物自组装形成的纳米结构在药物递送、传感、催化等领域有着广阔的应用前景。受限环境对嵌段共聚物自组装行为及组装体结构的影响广泛存在，对于构筑新颖组装结构和制备功能性聚合物材料具有很强的现实意义和理论价值，近年来引起广泛的研究兴趣。本项目开展了基于非对称纳米通道的嵌段共聚物受限自组装研究。将具有pH响应的嵌段共聚物在纳米通道内自组装，通过改变共聚物与均聚物的比例获得不同结构的组装体，并在此基础上制备介孔纳米纤维。研究了离子在受限自组装通道中的输运性质，探讨其应用于先进能源转换体系的可能性，为构筑基于嵌段共聚物自组装的新型能源转换器件提供依据。本项目首次将非对称纳米通道用于刺激响应性嵌段共聚物的受限自组装，将推动具有功能性及响应性共聚物受限自组装的研究，具有重要的学术意义和应用价值。