Rapid Synthesis of Non-Crosslinked and Monodisperse Polystyrene Microspheres

Abstract:

Non-crosslinked and monodisperse polystyrene (PS) microspheres showing uniform size were synthesized by using a dispersion polymerization technique in the presence of the Fenton reagent (FeSO₄/H₂O₂) as an initiator. The effects of stabilizer dosage, monomer concentration, volume ratio of dispersion medium and reaction time on both the morphology and dispersity of PS microspheres were investigated. The results of transmission electron microscopy (TEM) and field emission scanning electron microscope (FESEM) indicated that the obtained PS microspheres are perfect with uniform size of about 170 nm under the optimum experimental condition. On the basis of the experimental results, the mechanism of PS polymerization was proposed, which should be helpful to guide the preparation of polymer microspheres with desired uniform size. In comparison with the conventional emulsion polymerization, this new synthesis technique with the Fenton reagent exhibits some advantages such as being a simple and fast polymerization process without deoxygenation.

• Periodical: Advanced Materials Research (Volumes 634-638)
• Pages: 2222-2227
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.634-638.2222
• Online since: January 2013
• Authors: Chang Ming Ye, Yan Qin Yang, Feng Dong, Li Li, Xi Long Hao, Ming Hua Wang, Xiang Yu Wang, Hong Zhong Zhang
• Keywords: Fenton Reagent, Polymer Synthesis, Polystyrene Microspheres, Structural

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