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Open-Pore Organic Material for Retaining Radioactive I_2 and CH_3I

机译：用于保留放射性I_2和CH_3I的开孔有机材料

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摘要

Application of ultrasound and ball milling produces micrometer-sized crystallites of tris-(o-phenylenedioxy)-cyclotriphospha-zene (TPP) that show zeolite-like reversible sorption of I_2 and CH_3I (methyl iodide). The thermal stability of open-pore TPP is improved by partial loading with pyrazine. The sorption properties of open-pore TPP are investigated by the ~(131)I radioactive tracer method. Comparison with activated charcoal (ACC) shows that TPP has a higher sorption efficiency for I_2 dissolved in water than ACC. In the case of a humid gaseous source of CH_3I also, TPP exhibits better sorption properties than ACC. Partial loading of open-pore TPP by pyrazine increases its thermal stability by 50℃ and the binding properties for retaining CH_3I are also improved. Force-field calculations show a difference of △E ≈ 20 kJ mol~(-1), making the open-pore system less stable than the apohost.
机译：超声和球磨的应用产生了微米级的三-（邻苯二甲氧基）-环三磷-锌（TPP）微晶，这些微晶显示出I_2和CH_3I（甲基碘）的沸石状可逆吸附。通过吡嗪的部分负载改善了开孔TPP的热稳定性。通过〜（131）I放射性示踪剂方法研究了开孔TPP的吸附性能。与活性炭（ACC）的比较表明，TPP对溶于水中的I_2的吸附效率高于ACC。同样在湿气CH_3I气源的情况下，TPP的吸附性能也比ACC好。吡嗪对开孔TPP的部分负载将其热稳定性提高了50℃，并且保留CH_3I的结合性能也得到了改善。力场计算结果表明，相差ΔE≈20 kJ mol〜（-1），这使得开孔系统的稳定性低于脱辅基。

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