吴刊选,柴昌盛,高鑫

• 1:兰州交通大学机电工程学院
• 2:兰州城市学院培黎工程技术学院

摘要(Abstract)：

用Stber法合成了单分散的SiO2微球,然后通过表面改性和室温缩合反应,在SiO2微球表面引入偶氮基团,从而制备得到SiO2引发剂。利用该引发剂原位引发苯乙烯进行自由基聚合,在SiO2微球表面成功接枝上聚苯乙烯分子链(PS),从而制备得到SiO2-PS复合微球。研究结果表明:合成的SiO2微球和SiO2引发剂均具有良好的球形形态,其粒径分别为250 nm和280nm。SiO2引发剂原位引发苯乙烯聚合后,在SiO2微球表面接枝上厚度约为40 nm的聚苯乙烯壳层,其约占复合微球质量的32%,从而形成了以SiO2微球为核、以聚苯乙烯为壳的无机/有机杂化微球。

关键词(KeyWords)： SiO2;室温缩合;原位引发;聚苯乙烯;杂化微球

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 吴刊选,柴昌盛,高鑫

DOI: 10.13289/j.issn.1009-6264.2014.08.004

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