用原子力显微镜研究聚苯乙烯胶体颗粒的特性

以聚苯乙烯胶体颗粒为研究对象，主要讨论均分散聚苯乙烯胶体颗粒的制备、用原子力显微镜研究样品的各种物性．首先寻找合适的方法合成均分散聚苯乙烯微球，制备较均匀的胶体颗粒：然后用原子力显微镜分别从样品表面微观形貌的直观的三维结构信息，及表面在纳米尺度上表现出来的物理、化学性质进行测试；最后对获得的数据进行分析，并对其性质进行表征．结果表明：无皂乳液法，为制备单分散聚苯乙烯微球的有效方法；通过分析聚苯乙烯颗粒样品表面孔径大小和分布，显示了原子力显微镜在分析样品表面形貌结构方面有其特有的优势，它非常适合用于研究纳米尺度上样品。

Study of the Properties of the Polystyrene Colloidal Particles by AFM

This paper makes a study of the polystyrene colloidal particles,focusing on the preparation of the dispersed colloidal particles of polystyrene,and the properties of the sample with the atomic force microscope.First, we found a proper method of synthesizing dispersed polystyrene microspheres,and prepared the homogeneous colloidal particles.Second,the three-dimensional structure of the surface morphology,and the physical and chemical properties of the surface at nanometer level were tested with the atomic fo...