在硬脂酸改性纳米CaCO3存在下进行了苯乙烯(St)和丙烯酸正丁酯(nBA)的分散共聚合,制备了平均粒径为1.76 μm、单分散性较好的CaCO3/P(St-co-nBA)核壳复合粒子.包覆层聚合物P(St-co-nBA)与CaCO3粒子之间存在物理吸附和化学键合作用,使其热分解温度比共聚物P(St-co-nBA)高.经热二甲苯抽提后复合物中仍有共聚物存在,这部分共聚物与CaCO3通过化学键牢固的结合.热失重结果表明,CaCO3的稳定包覆率为6.6％.
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