高分子合金是高分子材料科学与工程中十分活跃的研究领域。讨论了在高分子合金研究中倍受人们关注的制备技术、增容剂和增韧机理等问题,介绍了这一领域中近年来的进展。 Polymer alloy is a very active research field in polymer materials science and engineering. The preparation technology, compatibilizer and toughening mechanism, which have drawn much attention in the research of polymer alloys, are discussed. The progress in this field in recent years is introduced.