A negative-charged, metal-containing cyclomatrix polyphosphazene microsphere (MCPM) is synthesized using the strategy of precipitation polymerization of di-functionalized polyoxometalates (POMs) and hexachlorocyclotriphosphazene. The chemical structure of these MCPMs is well characterized by 13 C MAS NMR and 31 P MAS NMR, as well as FT-IR, electron microscopy, and X-ray photoelectron spectroscopy. The covalent grafting of the rigid POMs clusters into the framework of these microspheres prevents the collapsing of the pores, making these MCPMs porous materials. Taking advantage of the porous structure and the negative charges in the frameworks, these materials show interesting charge-selective adsorption properties, as demonstrated by the selective adsorption of positive-charged dyes in comparison with negative-charged dyes.

中文翻译：

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基于多金属氧酸盐的负电荷含金属的Cyclomatrix聚磷腈微球的合成及其在电荷选择性染料吸附中的应用。

使用双官能化多金属氧酸盐（POM）和六氯环三磷腈的沉淀聚合策略合成了带负电荷的含金属的环矩阵聚磷腈微球（MCPM）。这些MCPM的化学结构通过13 C MAS NMR和31 P MAS NMR以及FT-IR，电子显微镜和X射线光电子能谱进行了很好的表征。刚性POM簇的共价接枝到这些微球的框架中可防止孔塌陷，从而使这些MCPM成为多孔材料。利用多孔结构和骨架中的负电荷，这些材料显示出有趣的电荷选择性吸附特性，正电荷染料与负电荷染料的选择性吸附证明了这一点。