聚乙烯吡咯烷酮分子量对水凝胶/聚己酰胺双层膜吸附性能及物理力学性能的影响

N. Baran, O. Grytsenko, V. S. I. Moravsky
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摘要

本文研究了聚乙烯吡咯烷酮(PVP)的分子量对复合水凝胶/聚己酰胺膜性能的影响,该膜是在聚酰胺(PA-6) - PVP混合物的基础上,通过超薄层改性得到的2-甲基丙烯酸羟乙酯(HEMA) - PVP共聚物水凝胶膜。结果表明,复合膜层间相互作用的大小及其性能(含水量、抗拉强度、盐渗透系数和水渗透系数)在很大程度上取决于原始聚合物单体组成和改性PA-6/PVP溶液中PVP的分子量。
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INFLUENCE OF POLYVINYLPYRROLIDONE MOLECULAR WEIGHT ON THE SORPTION AND PHYSICAL-MECHANICAL PROPERTIES OF HYDROGEL/POLYCAPROAMIDE TWO-LAYER MEMBRANES
The paper presents the study results of the molecular weight effect of polyvinylpyrrolidone (PVP) on the properties of composite hydrogels/polycaproamide membranes, which were obtained by modifying hydrogel films based on copolymers of 2-hydroxyethylmethacrylate (HEMA) with PVP by applying ultra- thin layers on the basis of a polyamide (PA-6) with PVP mixture. It was found that the interaction magnitude between the layers of composite membranes, as well as their properties – water content, tensile strength, salt and water permeability coefficients, largely depend on the molecular weight of PVP as in the original polymer-monomer composition and in the modifying PA-6/PVP solution.
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