以明胶微球为模板, 采用层层自组装技术制备了明胶/SiO2/PAH复合微球, 并用热水溶解模板得到了SiO2/PAH复合空腔微球. 通过用ζ电位、TEM、IR、TG等测试手段对其样品进行表征分析. 结果表明, SiO2/PAH有效地组装在明胶微球上, 形成了核壳式结构, 模板去除后得到空腔结构. 在溶解模板的过程中, 通过对明胶水解产物氨基酸含量的测定, 发现SiO2/聚电解质的存在具有一定的缓释性.
The gelatin/SiO2/PAH composite microspheres using gelatin spheres as templates were fabricated
by layer-by-layer self-assembly. Templates were removed by dissolving in hot water and the hollow SiO2/PAH microspheres were produced. Samples
were characterized by ζ- potential, TEM, IR, TG, etc. measurements. The results showed that SiO2/PAH was assembled effectively on gelatin
spheres and formed core-shell structure, and hollow structure was obtained by removing gelatin. In the process of dissolving templates, slow-releasing
effect of hollow microspheres was found by the determination of amino acids from the hydrolyzed gelatin.
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