MONODISPERSED AND NANOSIZEDDENDRIMER/POLYSTYRENE LATEX PARTICLES

• 作 者: Warren T. Ford
• 机 构: Department of Chemistry, Oklahoma State University, Stillwater, Oklahoma 74078, USA
• 出 处: China Particuology Science and Technology of Particles
• 发表日期: 2004年05期
• 关键词: surfactant emulsion polystyrene diameters polymerization placed template sized s

Emulsion polymerization of styrene was carried out using dendrimer DAB-dendr-(NH2)64 as seed. The size and size distribution of the emulsion particles were characterized by transmission electron microscopy (TEM) and dy- namic light scattering (DLS), and the effects of emulsion polymerization conditions on the preparation of emulsion particle were investigated. It has been found that the nanosized dendrimer/polystyrene polymer emulsion particles obtained were in the range of 26~64 nm in diameter, and were monodisperse; the size and size distribution of emulsion particles were influenced by the contents of dendrimer DAB-dendr-(NH2)64, emulsifier and initiator, as well as the pH value.

Emulsion polymerization of styrene was carried out using dendrimer DAB-dendr- (NH2) 64 as seed. The size and size distribution of the emulsion particles were characterized by transmission electron microscopy (TEM) and dy-namic light scattering (DLS), and the effects of emulsion polymerization conditions on the preparation of emulsion particles were investigated. It has been found that the nanosized dendrimer / polystyrene polymer emulsion particles obtained in the range of 26-64 nm in diameter, and were monodisperse; the size and size distribution of emulsion particles were influenced by the contents of dendrimer DAB-dendr- (NH2) 64, emulsifier and initiator, as well as the pH value.