学科分类
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3 个结果
  • 简介:Afteraconciseintroductionofhydrogenbondingeffectsinsolute-soluteandsolute-solventbonding,thedesignofpolymericadsorbentsbasedonhydrogenbonding,selectivityinadsorptionthroughhydrogenbonding,andcharacterizationofhydrogenbondinginadsorptionandseparationwerereviewedwith28references.

  • 标签: 聚合吸收剂 吸性 分离
  • 简介:Theadsorptionisothermsofcaffeinefromaqueoussolutionontothreehydrogendonatingadsorbents-hydroxypolystyrene,polystryene-azo-pyrogallol,andD72resin-weremeasured.TheadsorptionenthalpiescalculatedfromtheisothermsaccordingtotheClausisu-Clapeyronequationwere-24-36kJ/mol,-32-37kJ/mol,and-19-24kJ/molrespectively.Thesevaluesimpliedthattheadsorptionprocesseswerebasedonhydrogenbonding.Furthermore.themechanismoftheadsorptionofcaffeineontoD72resinwasstudiedbyIRspectraandthesmallmolecularmodelexperiments,andtheresultsshowedthattheadsorptionofcaffeineontohydrogendonatingadsorbentswasbasedonhydrogenbonding.

  • 标签: 吸附 咖啡因 氢键键合吸附剂
  • 简介:Twohydrogen-bondingadsorbents-macroporouscrosslinkedpoly(P-nitrostyrene)andpoly(p-vinylbenzylamide)-weresynthesized,andtheadsorptionpropertyofphenolfromcyclohexanesolutionontotheadsorbentswasstudied,ThedifferentialadsorptionheastsforvariedadsorptioncapacitiescalculatedfromtheadsorptionisothermsaccordingtotheClaperyron-Clausiusequationlayintherangeofhydrogenbondenergy(8-50kJ/mol),Theadsorptioncapaccityofo-nitrophenolincyclohexanewasmochlessthanthatofphenolunderthesamecondition.Theadsorptioncapacityofphenolfromcyclohexaneontopolyacrylonitrilewasmuchlessthanthatontopoly(p-nitrostyrene)orpoly(p-vinylbenzylamide),Alltheseresultsrevealedthatadsorptionofphenolfromcyclohexanebypoly(p-nitrostyrene)orpoly(p-vinylbenzylamide)isbasedonhydrogen-bonding.

  • 标签: 氢键键合吸会剂 苯乙醚 吸附