中文摘要：

将苯胺（An）与甲氧基聚乙二醇邻氨基苯基醚氧化共聚，制备了梳状接枝共聚物PAn-g-PEG．研究了梳状接枝共聚物的UV-Vis、微观结构、热稳定性和溶解成膜性等随侧链聚乙二醇（PEG）链段的变化规律．结果表明随PAn-g-PEG中PEG链段长度和含量的提高，共聚物的溶解性和成膜性能显著提高，电子导电率缓慢降低，热稳定性变差．共聚物具有微相分离结构，其形态随PEG链段的改变分别为“海-岛相”和“双连续相”；提高PEG链段长度和含量，PAn-g-PEG能形成稳定的水溶性分散体系，并能浇注成柔韧平整的导电高分子自支撑膜．

英文摘要：

The comb-shaped copolymers PAn-g-PEG were prepared by chemical oxidation copolymerization of aniline and methoxyl poly（ ethylene glycol） o-aminophenyl ether. The UV-visible spectra, microstructures, thermal stabilities, solubility and film-forming properties of the copolymers were investigated as functions of side-chain poly（ethylene glycol） （PEG） segments. The results show that when the PEG segments length or its content in the grafted copolymers are increased, the solubility and film-forming property of PAn-g-PEG improve remarkably, and the electrical conductivity decreases slowly, while the thermal stability becomes worse. TEM images indicate that the copolymers exhibit microphase separation and morphology change from the ＂sea-island＂ mode to the ＂bicontinuous＂ one with increasing the length or content of the PEG segments. A soft and smooth conducting polymeric film can be directly obtained by casting the stable aqueous dispersion of PAn-g-PEG, which becomes water-soluble when the PEG segments length or content are increased.