FENG Yu-guang, TENG Feng, HUANG Shi-hua. Mechanism of Preparing White Electrophoretic Composite Spherical Particles by Precipitation Polymerization[J]. , 2011,26(3): 285-295
Under specific property of titanium dioxide and 4-vinylpyridine
titanium dioxide multi-core and poly(divinyl-benzene-styrene-4-vinyl pyridine) shell hybrid composite spherical and smooth particles were prepared in methanol by precipitation polymerization. DSC and TG had detected polymerizing effect
structure unit of polymer was confirmed by FT-IR
and SEM took photographs of composite microsphere. As a result
the stable spherical and smooth particles were obtained. The corresponding mechanism was confirmed by SEM photographs and changing some parameters of core/shell microspheres prepared in a series of methods. The dispersing order and amount of 4-vinylpyridine dominated the mechanism of forming composite spherical particle. Then
the electrophoretic property of the composite particle was verified with a quaternary ammonium salt combined with hydrocarbon bromide and pyridyl covered on the surface of microsphere prepared in methanol by precipitation polymerization.
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