分别采用无皂乳液聚合法和分步乳液聚合法,使用过硫酸钾(KPS)为引发剂、聚乙烯吡咯烷酮(PVP)为稳定剂、十二烷基硫酸钠(SDS)为乳化剂制得单分散PS微米球和纳米球.讨论了引发剂、稳定剂、乳化剂等因素对PS球粒径大小的影响.研究表明,在一定范围内随着KPS、PVP、SDS用量的增加,PS球粒径逐渐变小,而粒径分布不变.通过调整KPS、PVP、SDS的用量,可以在10~1000nm范围内实现PS球的可控制备.
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