利用超浓乳液界面引发制备疏水性核/亲水性壳的两性粒子.首先,通过超浓乳液聚合得到聚苯乙烯胶体粒子,作为疏水性的核;然后,通过界面引发使丙烯酰胺在核的表面聚合,形成亲水性的聚丙烯酰胺的壳层.界面引发体系由过氧化羟基异丙苯和硫酸亚铁组成.控制条件,可得到网孔(半包覆)、褶皱(全包覆)两种结构的壳层,核-壳间无化学键键连,无共聚物过渡层.另外,壳层孔的存在使得核层聚合物能与外界接触.
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