围绕聚合物材料不同层次聚集态结构的形成与控制开展研究工作，在揭示聚合物附生结晶本质的基础上，重点研究高分子共聚和共混体系在取向基质上的结晶行为，拟通过结晶诱导的不同微相分离，借助附生结晶实现对复合体系微相结构、组分的晶体结构、链取向以及链平面空间排列的控制，探索结合附生结晶和微相分离有效控制高分子共聚和共混体系各级结构的技术路线。1）跟踪附生物熔体在取向基质上链取向行为，并在取向基质上构建附生物的非晶态薄膜，检测非晶膜界面层内的分子链结构，揭示聚合物附生结晶的本质；2）构筑具有附生结晶能力的嵌段共聚物，研究其在不同基质上的结晶和相分离行为，揭示组分间相互制约规律，明确影响附生结晶化学结构和相结构的因素；3）构筑相应的共混物体系，明确附生结晶对微相分离的控制规律及微相分离的受限空间结晶行为。通过本项目的实施，发展利用附生结晶控制共聚和共混高分子体系的各级结构方法。

This project focuses on the surface-induced crystallization of polymers. Through investigating the epitaxial crystallization of polymers on various oriented substrate, the origin for the occurrence of polymer epitaxy will be first studied. Then copolymers or polymer blends with at least one component having epitaxial crystallization ability on certain oriented polymeric substrate will be produced and their crystallization behavior on different oriented substrates will be studied. The main idea of this work is to utilize the surface-induced epitaxial crystllization of one component or both components of the system to control the crystal structure, chain orientation and spatial arrangement of molecular plane. At the same time, the microphase structure of the system will be controlled through crystallization-induced phase separation. In this way, both the phase structure and the intrinsic structure of each polymer component will be well modulated. Taking the microphase separation into account, confined crystallization of the later crystallizing component will take place, and unusual structure may be expected for the composite. Through this study, we hope to develop new technology for control phase structure with high oriented component in each phase.