Lamellar polysilsesquioxane containing two kinds of aminoalkyl groups were synthesized using alkanoic acids. Our intension with this synthesis was to increase the exposure to the absorbate of the absorption sites in the polymer solid without sacrificing its high density of sites. That is, this method is designed to weaken the interactions around the amine sites that inhibit diffusion of the aqueous cation pollutants. The mixing ratio, x: y, of 3-aminopropyltrimethoxysilane (AP silane) and N-(aminoethyl)-3-aminopropyltrimethoxysilane (AeAP silane) in the liquid precursor agrees well with that of the AP and AeAP groups in the solid, [(C₁₃H₂₇COOH)_x(C₁₂H₂₃CH(COOH)CH₂COOH)_y(NH₂C₃H₆)_x(NH₂C₂H₄NHC₃H₆)_ySi₁₀O₁₅]_n or [(MAS)_x(C12SA)_y(AP)_x(AeAP)_ySi₁₀O_1.5]_n (x + y = 10). A good lamellar structure was obtained with x: y ratio higher than 2: 8. FT-IR spectroscopy reveals that increasing the x: y ratio enhances the bands due to hydrogen-bonded –COOH and dissociated –COO^-, suggesting an increase in water molecule insertion around the carboxyl and amine groups with x: y. In ¹³C CP-MAS NMR, unresolved peaks due to carboxylate carbons disappear at x: y = 4: 6 and 2: 8, suggesting that carboxylate is isolated at these mixing ratios probably due to hydration. In addition, continuous growth of the peak due to ionized carboxylate is observed. The amount of absorbed aqueous Cu(II) is particularly large when x: y = 4: 6, which is revealed by analysis with the Langmuir equation. In contrast, the ESR spectrum of Cu(II) is independent on the x: y ratio, suggesting the accessibility of the absorption sites is simply improved when x: y = 4: 6. It is likely that this mixing ratio provides a particularly effective structure for exposing the absorption sites of aqueous Cu(II).

使用链烷酸合成了含有两种氨基烷基的层状聚倍半硅氧烷。我们合成的目的是增加聚合物固体中吸收位点对被吸收物的暴露，而不牺牲其高密度位点。也就是说，该方法旨在减弱胺位点周围的相互作用，从而抑制水性阳离子污染物的扩散。液体前体中3-氨基丙基三甲氧基硅烷（AP硅烷）和N-（氨基乙基）-3-氨基丙基三甲氧基硅烷（AeAP硅烷）的混合比x：y与固体中AP和AeAP基团的混合比非常吻合[[（ C ₁₃ H ₂₇ COOH）_x（C ₁₂ H ₂₃CH（COOH）CH ₂ COOH）_y（NH ₂ C ₃ H ₆）_x（NH ₂ C ₂ H ₄ NHC ₃ H ₆）_y Si ₁₀ O ₁₅ ] _n或[（MAS）_x（C12SA）_y（AP）_x（AeAP）_y Si ₁₀ O _1.5 ] _n（x  +  y  = 10）。x：y可获得良好的层状结构比大于2：8。FT-IR光谱显示，提高X：ÿ比增强由于氢键键合的-COOH和离解的-COO频带^- ，提示围绕羧基和增加的水分子插入胺基与X：y。在¹³ C CP-MAS NMR中，由于羧酸碳的未解决峰在x：y  = 4：6和2：8处消失，这表明以这些混合比例分离出羧酸盐的原因可能是水合。另外，观察到由于离子化的羧酸盐导致峰的连续增长。吸收水的Cu（II）的量特别大时，X：ÿ = 4：6，这是通过使用Langmuir方程进行分析得出的。相反，Cu（II）的ESR光谱与x：y比率无关，表明当x：y  = 4：6时，吸收位点的可及性得到了简单的改善。用于暴露Cu（II）水溶液吸收位点的结构。