聚烯烃的功能化方法可分为:直接典聚法、反应性基团功能化和后功能化。与另外两种功能化方法相比.后功能化法的研究和应用较为广泛。本文重点介绍近年来后功能化的新技术如等离子体接枝、超临界二氧化碳接枝、固相力化学接枝和缩合聚合接枝以及传统方法比如溶液接枝法、辐射接枝法和回相接枝法的更新与改进。功能化聚烯烃对聚合物填充体系和共混体系有良好的增容作用。
Polyolefins functionallization mainly consists of copolymerization, reactive functionallization and post-functionallization. Compared to the other functional methods, post-functionallization are more widely researched and applied. Emphasis is laid on the new methods of postfunctionallization in terms of plasma graft copolymerization, supercritical carbon dioxide graft copolymerization and solid state mechanical chemical graft copolymerization, and some renovations to the traditional post-functionallization in terms of solvent graft copolymerization, radiation graft copolymerization and solid phase graft copolymerization. Functional polyolefins are excellent compatibilizers for polymer composites and blends.