Abstract
Polystyrene (PS) nanospheres with a monodisperse size distribution, positive surface charge and high molecular weight were successfully synthesized using various types of metal stearates in an aqueous NaOH medium. The diameter of the PS nanospheres was controlled from 80 to 450 nm by changing the type of metal stearate. It was also found that controlling the NaOH concentration in solution was important for producing monodisperse PS nanoparticles. The nanospheres prepared with zinc stearate possessed a positive surface charge of 60 to 80 mV, confirming that PS particles were functionalized with metal stearates. It is believed that the metal stearates provide PS particles with not only colloidal stability but also a positive surface charge.
Original language | English |
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Pages (from-to) | 178-181 |
Number of pages | 4 |
Journal | Macromolecular Research |
Volume | 16 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2008 Feb |
Keywords
- Emulsion polymerization
- Metal stearate
- Monodisperse nanoparticle
- Polystyrene
- Positive surface charge
ASJC Scopus subject areas
- General Chemical Engineering
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry