Stability of Emulsion Polymerization of New Fluorinated Acrylate Emulsion and Its Characterization

Abstract

The new fluorinated acrylate emulsion was synthesized by using the intermediate perfluorous nonene and 2-hydroxyethyl methacrylate as the staring reactants via semi-continuous seeded emulsion polymerization. The structures, glass transition temperature, thermal property and water repellency of the fluorinated acrylate emulsion were characterized with FTIR, differential scanning calorimetry, thermal analysis, and contact angle meter. Influences of many factors such as the theoretical solid content, the temperature of the emulsion polymerization on the stability of the emulsion polymerization, the added amount of emulsifiers and the added amount of the initiator were studied. Results show that the stability of the emulsion polymerization is fairly good when the theoretical solid content is below 30% and the reaction temperature is 80°C and the added amount of emulsifiers and the initiator are 6.0–8.0% and 2.0% respectively. In comparison with the acylate emulsion, the thermal stability of the fluorinated acrylate emulsion is decreased but the water repellency of the fluorinated acrylate emulsion is greatly increased.

Keywords:

• Fluorinated acrylate emulsion
• stability of emulsion polymerization
• thermal stability
• water repellency

This work has been supported by the Science and Technology Department of Zhejiang Province under Grant No. 2010C31040. In addition, the financial support of Zhejiang Provincial Natural Science Foundation of China (No. Y4100152) is gratefully acknowledged. The authors are very grateful to all the members of our discussion group for their beneficial comments.