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| Controllable preparation of polystyrenemethylacrylic acid latex templates and silica hollow spheres |
| College of Chemistry and Biology, Beihua University, Jilin, Jilin 132013, China |
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Abstract The polystyrenemethacrylic acid latex templates were prepared by emulsifierfree and emulsifier emulsion polymerization. The average diameters of the polystyrenemethacrylic acid latex templates were respectively controlled at 363, 349, 160 and 56 nm to realize controllable preparation of polystyrenemethylacrylic acid latex templates. Whereafter, the hollow silica microspheres with various grain size and shell thickness were prepared after calcination to remove the templates with polystyrenemethylacrylic acid latexes as templates and sodium silicate as precursor. The diameters of the silica hollow microspheres range from 69 to 405 nm with the shell thicknesses from 11 to 27 nm. The latex templates, coreshell composites and silica hollow spheres were characterized by scanning electron microscopy (SEM), transmission electron microscopy(TEM) and FTinfrared spectroscopy (FTIR). An effective method for controllable preparation of polystyrenemethylacrylic acid latex templates and silica hollow spheres was proposed.
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2012, Vol. 33 
