调控聚合物薄膜表面物理化学结构是获得具有预想性能薄膜材料的有效途径，也是高分子物理学中的热点问题，具有重要的研究价值。本项目结合我们在嵌段共聚物薄膜微相分离和均聚物去润湿方面的研究基础，针对超热氢诱导交联技术（HHIC）及其对薄膜在退火过程中转变行为的影响拟进行如下研究：1）揭示超热氢诱导聚合物薄膜进行表面交联的基本规律，实现可控交联的关键因素和此技术的普适性。2）利用HHIC技术在聚合物纳米薄膜体系中构筑双层膜结构，并探讨其发生起皱的机理和规律。3）进一步研究交联层厚度、模量和表面化学结构的变化等因素对嵌段共聚物的微相分离行为的影响，进而通过HHIC技术实现对聚合物纳米薄膜去润湿行为的抑制以及对嵌段共聚物的微相分离和均聚物起皱行为的调控。通过上述研究，构建可控表面纳米交联对聚合物薄膜在退火过程中物理结构演变影响机理，为利用聚合物薄膜制备多尺度结构的材料和器件提供理论指导与新的思路。

Tuning the surface physical and chemical structure of the polymer film is an effective method to obtain film materials with desirable properties, which makes it an extremely valuable research focus of polymer physics. With the combination of our previous fundamental research in the micro-phase separation of and dewetting of block copolymer film, we propose the research in the hyperthermal hydrogen induced cross-linking (HHIC) method and its effect on physical transition of polymer film as follows: 1) explore the basic rules and key factors of controllable cross-linking polymer thin film via HHIC method; 2)build up a bilayer structure in a ultrathin polymer film using HHIC and study the effect of the cross-linking degree on the wrinkle mechanism and kinetics of homopolymer films; 3) investigate the influence of the thickness, modulus and chemical structure of cross-linking layer on the micro-phase separation of block copolymer thin films. Further tune the dewetting and wrinkle of homopolymers and micro-phase separation of block copolymers using HHIC method. Based on the above research, the relation between the controllable cross-linking of polymer surface and the structure evolution of the film will be established, which in turn provides theoretical guidance and approaches for the fabrication of polymer film materials and devices with multi-scale structures.