The occurrence of heavy metals in the natural aquatic systems arising from anthropogenic sources is an issue of global and environmental concern because of their extremely harmful effects to living beings even in rather low concentrations. The synthesis and ring-opening metathesis polymerization (ROMP) of novel norbornene dicarboximides bearing highly aromatic pendant groups, specifically, N-4-tritylphenyl-norbornene-5,6-dicarboximide (2a) and N-2,4,6-(triphenyl)phenyl-norbornene-5,6-dicarboximide (2b), their hydrogenation and further polymer sulfonation to render them adsorbents for the uptake of heavy metal ions from water is reported in this study. The macromolecules were characterized by means of FT-IR, ¹H NMR, and thermal analysis, among others. A thoroughly kinetic and isothermal study of adsorption in single and ternary aqueous solutions of Pb²⁺, Cd²⁺, and Ni²⁺ was performed considering several experimental variables for instance initial metal concentration, contact time and solution pH. In general, the experimental data were adjusted more efficiently to the pseudo-second order kinetic model and to the Freundlich isotherm model, respectively. The maximum removal amounts were found to be 55.7 mg/g for Pb²⁺, 33.9 mg/g for Cd²⁺, and 10.2 mg/g for Ni²⁺ in the sulfonated trityl-bearing polymer 5a while those found for the sulfonated triphenyl-bearing polymer 5b were 31.5 mg/g for Pb²⁺, 26.6 mg/g for Cd²⁺, and 7.0 mg/g for Ni²⁺, respectively. The higher heavy metal removal capacity of polymer 5a was attributed to its also higher degree of sulfonation. The outcomes indicate that these novel sulfonic acid containing polymer-based adsorbents are effective for the uptake of heavy metallic elements from water.

人为来源的天然水生系统中的重金属是一个全球和环境关注的问题，因为即使在相当低的浓度下，它们也会对生物产生极其有害的影响。具有高度芳香侧基的新型降冰片烯二甲酰亚胺的合成和开环复分解聚合 (ROMP)，特别是N -4-tritylphenyl-norbornene-5,6-dicarboximide ( 2a ) 和N -2,4,6-(triphenyl ) 苯基-降冰片烯-5,6-二甲酰亚胺 ( 2b )、它们的氢化和进一步的聚合物磺化使它们成为吸附剂，用于从水中吸收重金属离子。大分子通过 FT-IR 表征，¹H NMR 和热分析等。考虑到几个实验变量，例如初始金属浓度、接触时间和溶液 pH 值，对 Pb ²⁺、Cd ²⁺和 Ni ^{2+ 的}单一和三元水溶液中的吸附进行了彻底的动力学和等温研究。一般来说，实验数据分别更有效地调整为伪二级动力学模型和 Freundlich 等温线模型。被发现的最大去除量为55.7毫克/克对Pb ²⁺，33.9毫克/克镉²⁺，和10.2毫克/克为镍²⁺在磺化三苯甲基轴承聚合物5A而那些发现磺化三苯基-轴承聚合物图5b分别为31.5毫克/克对Pb ²⁺，26.6毫克/克镉²⁺，和7.0毫克/克为镍²⁺，分别。聚合物5a较高的重金属去除能力归因于其磺化度也较高。结果表明，这些新型含磺酸聚合物基吸附剂可有效吸收水中的重金属元素。