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首页> 外文期刊>Colloids and Surfaces, A. Physicochemical and Engineering Aspects >Study about how the metal cationic ions affect the properties of partially hydrolyzed hydrophobically modified polyacrylamide (HMHPAM) in aqueous solution
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Study about how the metal cationic ions affect the properties of partially hydrolyzed hydrophobically modified polyacrylamide (HMHPAM) in aqueous solution

机译：研究金属阳离子对水溶液中部分水解的疏水改性聚丙烯酰胺（HMHPAM）性能的影响

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摘要

How the inorganic cations (Na~+, Mg~(2+), Ca~(2+), Cr~(3+) and Fe~(3+)) affect the properties of partially hydrolyzed hydrophobically modified polyacrylamide (HMHPAM) in aqueous solution was studied via molecular dynamics simulations, transmission electron microscopy, dynamic light scattering, Fourier transformation infrared spectroscopy, viscometer and conductivity measurements. The hydration and dehydration states of cations and the interaction force of the hydrated cations to the charged groups of polymer have been investigated by MD, which provided a fresh look into the interactions between cationic ions and HMHPAM. It was found that the water absorbing ability of cations was not always central to the degree of the effect on properties of HMHPAM. The coordination interaction and Coulomb interaction between multivalent cations and HMHPAM were found to be overwhelmingly important which accommodate remarkable effect on the property of the polymers in solution.
机译：无机阳离子（Na〜+，Mg〜（2 +），Ca〜（2 +），Cr〜（3+）和Fe〜（3+））如何影响部分水解的疏水改性聚丙烯酰胺（HMHPAM）的性能通过分子动力学模拟，透射电子显微镜，动态光散射，傅立叶变换红外光谱，粘度计和电导率测量研究了水溶液。 MD研究了阳离子的水合和脱水状态以及水合的阳离子与聚合物带电基团的相互作用力，为阳离子离子与HMHPAM之间的相互作用提供了新的视角。发现阳离子的吸水能力并不总是对HMHPAM性能的影响程度至关重要。发现多价阳离子与HMHPAM之间的配位相互作用和库仑相互作用极其重要，这对溶液中聚合物的性能具有显着影响。

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