Preparation and Stabilization of Emulsifier-free Macromolecule Nanoparticle Latex Particles

• 来源期刊: 中国化学（英文版）
• 学科: 化学
• 年，卷（期）: 2001,（8）
• 所属期刊栏目: Communication
• 页码范围: 814-816
• 页数: 3页
• 分类号: O6
• 语种: 英文

摘要

By using acetone-water as the medium and potassium persul fate (KPS) as the initiator, emulsiaer- free emulsion co-poly-merization of styrene with co-monomers: MMA, BMA, EA and BDA under microwave h-radiation has been investigated. The influence of the each co-monomer content and hydrophllicity on the hydrodynamic radius Rh of the synthesized copolymar nanopartices is discussed in detail. The results show that the increase in ratio of hydrophilic copolymer causes an increase in consumption of the initiator in the initiation reaction, so an increase in the concentration of the surface-OSO3- groups which cause the increase in the stability of the latex and gives rise to the formaon of smaller mlicelles. The nano-particle radius will increase again when the co-monomer content increases to a certain degree.The curve of the particle hydrodynamic radius vs the co-monomer content has a minimum point.