Qualitative and quantitative relationships between affinity constants from model study and real adsorption data  

作　　者：QIAO YiTao LI PingLin ZHAO JianXin WANG Wei YUAN Zhi 

机构地区：[1]Key Laboratory of Functional Polymer Materials, Ministry of Education, Institute of Polymer Chemistry, College of Chemistry, Nankai University,Tianjin 300071, China

出　　处：《Chinese Science Bulletin》2010年第29期3248-3251,共4页

基　　金：supported by the National Natural Science Foundation of China (50573034 and 20634030);Specialized Research Fund for the Doctoral Program of Higher Education (20090031120020)

摘　　要：Linear polymers bearing the same functional groups as their corresponding adsorbents could be used as models to study the adsorption behaviors.However,the relationships between the data from model study and real adsorption have not been fully interpreted.In this work,three adsorbent(CP1-Zn2+,CP2-Zn2+ and CP3-Zn2+) and their corresponding linear models(P1-Zn2+,P2-Zn2+ and P3-Zn2+) were synthesized.The affinity constants(Ka) between these models and target peptide DFLAE(DE5) were obtained by isothermal titration calorimetry(ITC).Adsorption capacities and adsorption affinities were carried out by static adsorption and adsorption isotherm.The qualitative and quantitative relationships between affinity constants from model study and the real adsorption data were explored.This study was significant to bridge the model study with the real adsorption.Linear polymers bearing the same functional groups as their corresponding adsorbents could be used as models to study the ad- sorption behaviors. However, the relationships between the data from model study and real adsorption have not been fully interpreted. In this work, three adsorbent （CPI-Zn2＋, CP2-Zn2＋ and CP3-Zn2＋） and their corresponding linear models （P1-Zn2＋, P2-Zn2＋ and P3-Zn2＋） were synthesized. The affinity constants （Ka） between these models and target peptide DFLAE （DES） were obtained by isothermal titration calorimetry （ITC）. Adsorption capacities and adsorption affinities were carried out by static adsorption and adsorption isotherm. The qualitative and quantitative relationships between affinity constants from model study and the real adsorption data were explored. This study was significant to bridge the model study with the real adsorption.

关 键 词：吸附模型 吸附数据 亲和常数 等温滴定量热法 线性聚合物 吸附等温线 吸附行为 物价指数 

分 类 号：O647.3[理学—物理化学] S852.4[理学—化学]