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首页> 外文期刊>Journal of Applied Polymer Science >Adsorption Properties of Cyclic Compounds on Cellulose Acetate
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Adsorption Properties of Cyclic Compounds on Cellulose Acetate

机译：环状化合物在醋酸纤维素上的吸附性能

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The interaction between solutes and semipermeable membranes is an important factor for the membrane-separation process.As and extenstion to previous works,we studied the adsorption properties of cyclic compounds on cellulose acetate,a material commonly used for semipermeable membranes,in aqueous solution systems by high-performance liquid chromatography (HPLC).Cycloalcohols,cycloethers,amino acids,heterocyclic aromatic compounds,and nucleosides were used in this study.The logarithm of the capacity factor (log k') for these compounds was linearly correlated with the logarithm of 1-octanol/water partition coefficients (log K_(o/w)) as well as noncyclic compounds.Cyclic compounds were relatively retained more than were noncyclic compounds in spite of their hydrophilic properties,which indicates the structural effects of the solute molecule on the adsorption.Although noncyclic compounds were retained mainly by hydrophobic interaction,the retention of cyclic compounds was suggested to be controlied by their inclusion within the micropore in cellulose acetate.The adsorption of heterocylic aromatic compounds was not influenced only by ionic dissociation but also by tautomerism.
机译：溶质与半透膜之间的相互作用是膜分离过程的重要因素。作为对先前工作的扩展，我们研究了环状化合物在醋酸纤维素（一种半透膜的常用材料）在水溶液体系中的吸附性能，方法是高效液相色谱（HPLC）。本研究使用了环醇，环醚，氨基酸，杂环芳族化合物和核苷。这些化合物的容量因子（log k'）的对数与1的对数线性相关-辛醇/水分配系数（log K_（o / w））以及非环状化合物。尽管环状化合物具有亲水性，但相对保留的程度要高于非环状化合物，这表明溶质分子对吸附的结构影响尽管非环状化合物主要通过疏水相互作用保留，但环状化合物的保留被认为是异质芳族化合物的吸附不仅受离子解离的影响，而且还受互变异构的影响。

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