中文摘要：

以丙烯酸甲酯（MA）和二乙烯三胺（DTA）为原料，通过麦克尔（Michael）加成生成AB2型单体。对纳米TiO2做适当表面预处理，以改性纳米Ti02为中心核，与合成所得的AB2型单体发生缩聚反应，在纳米TiO2表面接枝超支化聚酰胺胺（HPAMAM）。红外光谱（FT-IR）、热失重（TGA）和透射电镜（TEM）的测试结果表明HPAM—AM成功接枝到纳米TiO2表面。沉降实验和紫外可见光分析结果表明，接枝了HPAMAM的纳米TiO2在氯仿溶剂中有很好的分散稳定性。

英文摘要：

AB2 monomer was synthesized by the Michael addition of methyl acrylate （MA） and diethylene triamine （DTA）. Nano-TiO2 was grafted with hyperbranched polyamidoamine （HPAMAM） through one-spot polycondensation between AB2 monomer and the surface treated nano-TiO2. The modified nano-TiO2 was characterized by FTIR, TG and TEM. The results indicated that HPAMAM was successfully grafted onto the surface of nano-TiO2. The results of sedimentation experiment and UV-Vis analysis showed that nano-TiO2 grafted with HPAMAM has better dispersion in the chloroform solvents than that unmodified.