综述了近年来在高分子材料中运用超临界CO2 方法引入小分子的研究进展。介绍了相关的热力学、动力学和吸附机理的研究 ,并根据引入小分子的用途 ,将应用分为 5类 :1.制备高分子共混物 ;2 .制备金属高分子 ;3.纤维和薄膜染色 ;4.高聚物中引入添加剂 ;5 .吸附过程的光谱学监测 In this paper, the recent progress in the introduction of small molecules into supercritical CO2 in polymer materials is reviewed. The related thermodynamics, kinetics and adsorption mechanism are introduced. According to the introduction of small molecules, the applications are divided into five categories: 1. Preparation of polymer blends; 2. Preparation of metal polymers; 3. Fibers and films Dyeing; 4. Introduction of additives into the polymer; 5. Spectroscopic monitoring of the adsorption process