高分子复杂体系的介观动力学研究

This project aims at connecting the self-consistent field theory with the molecular dynamics models, which focus on the thermodynamic equilibrium state and dynamics processes, respectively. Therefore developing a mesoscopic dynamics theory model for polymer complex systems, which does not depend on the appointed stage of phase seperation and morphology. Use it to investigate the mechnical properties and dynamic rheology behaviors under rapid flow and large shear strain field, and further discover the relationship between the deformation and the dynamic rheological behavior in polymer complex systems. As a result, it can provide theoretical supports for design and processing of polymer materials.

将基于热力学平衡态的自洽场理论与研究动力学过程的分子理论模型关联起来，发展出适用于研究高分子复杂体系，且不应受限于相分离的具体阶段也不应受限于具体形态结构的介观动力学模型。通过研究高分子复杂体系于快速流场和大剪切应力下的体系力学性能和动力学流变行为规律，揭示高分子形变与高分子流变行为之间的关系，为高分子材料的设计和加工提供有益的理论支持。

本项目从高分子杂化体系的角度出发合成2个系列的两亲性三嵌段共聚物，然后将其接枝于碳材料（碳纳米管和纳米石墨片材）上，进而研究其流变性能；此外，通过建立模型解释说明了环状高分子复杂体系的本体行为以及从理论的角度说明了两亲性树枝状高分子由胶囊到胶束的转变实际上是受复杂体系中选择性溶剂分子的排斥体积所控制。本项目相关成果含3篇SCI论文和1篇EI论文发表在国际期刊《软物质》等。