A nanoparticle is a particle with a size in the nanometer range (1-100 nm). Nanoparticles have unique properties due to their small size and high surface area. In polymer chemistry, nanoparticles can be synthesized from polymers or used as fillers in polymer composites to enhance their properties.

纳米粒子是尺寸在纳米范围 (1-100 nm) 内的粒子。由于其尺寸小和表面积大，纳米粒子具有独特的性能。在高分子化学中，纳米粒子可以由聚合物合成，也可以用作聚合物复合材料中的填料以增强其性能。