【摘要】 通过多组分溶液的原位合成方法，成功地制备了ＴｉＯ２／聚苯乙烯－马来酸酐（ＰＳＭＡ）纳米复合材料．红外普图（ＩＲ）分析了这种材料的化学构成，证明纳米ＴｉＯ２与高分子是以共价键的形式存在．随着反应条件的改变，透射电镜（ＴＥＭ）观察到了纳米ＴｉＯ２在复合物中有规律的形貌变化．综合实验结果，提出高分子“锚定位”包覆的作用模型，形象地说明了这种材料以三维网络、纳米晶ＴｉＯ２微相分离的形式存在，同时ＴｉＯ２颗粒的团聚几率在相当大程度上得以降低．结合Ｘ射线衍射，还确定出了复合物中纳米ＴｉＯ２的锐钛矿型结构．更多还原

【Abstract】 TiO₂/Poly（styrene maleic anhydride） nanocomposites were synthesized in situ viamulti-component solution method. It was found that the composites existed in the formation ofcovalent bonding between TiO₂ and polymer by infrared spectra. The systematical morphologychange of TiO₂ in the composites with different reaction conditions was observed through transmission electron microscope. Based on the mechanism of " anchor wrapping ", the nanocompositeswere in the form of three-dimensional net with the separated nano-crystalline TiO2 micro-phasesinside, and the aggregation of TiO2 grains was successfully inhibitted. The anatase phase of TiO₂was proved by X-Ray diffraction.更多还原