聚苯乙烯微球模板法制备反蛋白石型光子晶体水凝胶薄膜

Preparation of inverse-opal hydrogel(IOH)films by using PS nano-spheres as templates

用乳液聚合法制备了系列单分散且粒径均一的聚苯乙烯纳米微球,以正交试验优化反应中各物质的用量对聚苯乙烯纳米微球的粒径大小及分布的影响,实现了在150～350nm 范围内PS纳米微球的可控制备.以不同粒径的PS纳米微球作为模板,以丙烯酰胺和丙烯酸作为原料制备了一系列反蛋白石型光子晶体水凝胶.通过比较它们之间的初始反射峰位置及反射峰变化范围,表明以300nm 左右的PS纳米微球作为模板制备的水凝胶在可见光范围内有较大的变化范围,并且有较好的形貌.

The monodisperse PS nanospheres with uniform size were prepared by dispersion polymerization.The effect of the amount of reactants on the size and distribution of the PS nanosphere was obtained by the method of orthogonal test and the controllable preparation of the PS nanosphere which size was between 150-350 nm was achieved.A series of IOH films were prepared using PS nanospheres as templates and acrylamide/acrylic acid as raw materials.The IOH films exhibit large variation range in reflectance spectrum could be obtained when the sizes of PS templates are about 300 nm.The IOH films prepared by this method show a good mor-phology.