中文摘要：

论文采用Ce^4＋和PEG组成的大分子引发剂引发丙烯腈单体AN聚合，合成嵌段共聚物PAN—PEG—PAN，并用DSC对PEG-b—PAN的热性能进行了研究。TEM结果表明，嵌段共聚物PAN—PEG—PAN在选择性溶剂中的自组装可以得到纳米尺度的胶束粒子。论文还研究了嵌段共聚物通过原位聚合和自组装两种方法对SiO2纳米粒子进行包覆的情况。通过TEM可以得到，相同条件下在自组装过程中对SiO2纳米粒子进行包覆情况较好。

英文摘要：

Ce^4＋ and PEG can be used as a macromolecule initiator in the polymerization of AN, forming PAN - PEG - PAN. Studies on the thermol-properties of this block copolymer were carried on using DSC. Also, TEM provides that in selective solvent PAN-PEG-PAN can assemble together, so micelles and their size are obtained. According to other articles, Nano-SiO2 can be coated as a core inside micelles. In this paper, two methods are used to study it and find that the self-assembly way is much better.