Abstract
Методом атомно-силовой микроскопии исследована неоднородность поверхности профилированной сульфокатионообменной мембраны после химического кондиционирования и контакта с водными растворами фенилаланина. Определены микропрофили, гистограммы плотности распределения значений высот и cтaндaртные aмплитудные пaрaметры шерoхoвaтocти поверхности oбрaзцoв мембрaны МК-40пр. Установленные различия в структуре, вoзрacтaние oднoрoднocти пoверхнocти мембрaны пocле кoнтaктa c аминокислотой связано с уменьшением количества и размеров макропор и крупных дефектов поверхности вследствие сорбции аминокислоты.
 
 Работа выполнена при финансовой поддержке РФФИ (проект № 18-08-01260).
 АСМ-изображения поверхности мембраны были получены на оборудовании Центра коллективного пользования Воронежского государственного университета. URL: http://ckp.vsu.ru.
Highlights
The purpose of this work is to find out the influence of alkylaromatic amino acid phenylalanine on the surface properties of the heterogeneous profiled sulfocation-exchange membrane MK-40
Investigations of the surface micro-relief of the membrane were performed by atomic force microscopy (AFM) with the use of scanning probe microscope produced by NT-MDT Corporation (Russia, Zelenograd) performed in semi-contact mode applied to the air-dry samples
The analysis of the microprofile surfaces of the membrane MK-40 confirms the fact of a decrease pr in the roughness of its surface in the amino acid form due to the decrease in the water content of the membrane
Summary
The purpose of this work is to find out the influence of alkylaromatic amino acid phenylalanine on the surface properties (microrelief and roughness) of the heterogeneous profiled sulfocation-exchange membrane MK-40. Heterogeneous sulfocation-exchange membrane MK-40pr with geometrically inhomogeneous (profiled) surface was employed as an object of investigations. The geometrical inhomogeneity of the surface of the profiled sulfocathion-exchange membrane MK40pr after chemical conditioning and its contact with aqueous solutions of phenylalanine concentration 0.15 mol/L for 80 hours was studied by atomic-force microscopy.
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