Study of emulsion polymerization stabilized by amphiphilic polymer nanoparticles |
| |
Authors: | Tingting Li Huarong Liu Lai Zeng Weifeng Miao Ying Wu |
| |
Institution: | (1) CAS Key Laboratory of Soft Matter Chemistry, Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui, 230026, People’s Republic of China; |
| |
Abstract: | Submicron-sized polystyrene (PS) microspheres with a relatively narrow particle size distribution can be easily produced through
emulsion polymerization induced by γ-ray at room temperature using a new type of amphiphilic cross-linked poly(stearyl methacrylate-co-acrylamide-co-acrylic
acid) particles as stabilizer. The properties of these amphiphilic particles were described, including morphology, size, ζ
potential, and contact angles. The effect of the pH value and the content of amphiphilic particles on the formation and stability
of emulsions were also investigated. Meanwhile, the obtained PS microspheres were characterized by Fourier transform infrared
spectroscopy, transmission electron microscopy, scanning electron microscopy and X-ray photoelectron spectroscopy. In addition,
through observing the morphology and size of emulsion droplets at different times under an optical microscope, we found it
is interesting that Pickering emulsions formed initially disappeared gradually, which is different from the common Pickering
emulsions stabilized by inorganic particles. Thus, the mechanism was further discussed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|