Miniemulsion polymerization of SiO2-p(methyl methacrylate) composite microsphere with waterborne polyurethane used as the surfactant

作者：Yang Wenlong; Yang Jianjun^*; Zhang Jian'an; Wu Qingyun; Wu Mingyuan

来源：Acta Materiae Compositae Sinica, 2013, 30(1): 112-118.

• Composite microspheres
• Double in situ
• Miniemulsions
• Reactive surfactants
• Waterborne Polyurethane

The carboxylic waterborne polyurethane was synthesized with isophorone diisocyanate(IPDI), polyether glycol(N210) and 2, 2-bis(hydroxymethyl) propionic acid(DMPA) as the major materials, and terminated by CC from β-hydroxyethyl methacrylate(HEMA). SiO2-PMMA composite microspheres were prepared with different types of initiators by double in situ miniemulsion polymerization, in which the waterborne polyurethane was used as a polymerizable surfactant. The prepared products were characterized by TEM, FTIR and TGA, respectively. The results indicate that morphologies of the SiO2-PMMA composite microsphere prepared by waterborne polyurethane surfactant(PUS) are different from those prepared by conventional micromolecule surfactants. The type of initiators affects significantly on the morphologies of the SiO2-PMMA.

• 出版日期2013
• 单位安徽大学