部分水解的疏水改性聚丙烯酰胺分子构型与体相行为的关系

doi:10.3866/PKU.WHXB201301313

Abstract

Abstract:

The relationship between the molecular configuration and bulk behavior of partially hydrolyzed hydrophobically modified polyacrylamide (HMHPAM) in aqueous solution was studied via dissipative particle dynamics (DPD) simulation. The influence of the polymer concentration, polymerization process, degree of hydrolysis, and the hydrophobic modified group of HMHPAM on the polymer solution, especially the extent of expansion of the polymer and the viscosity of the polymer solution, were investigated quantitatively by calculating the root-mean-square (RMS) end-to-end distance of the polymer and the water molecule diffusivity. The influencing mechanisms of the type and the arrangement of the repeating unit of the polymer chains on the HMHPAM solution properties were studied to direct the practical synthesis, modification, and application of the polymer.

Key words: Partially hydrolyzed hydrophobically modified polyacrylamide, Molecular configuration, RMS end-to-end distance, Diffusivity, Dissipative particle dynamics simulation

YUAN Rui, LI Ying, FANG Hong-Bo, WANG Wei. Relationship between Molecular Configuration and Phase Behavior of Partially Hydrolyzed Hydrophobically Modified Polyacrylamide[J]. Acta Phys. -Chim. Sin. 2013, 29(04), 706-714. doi: 10.3866/PKU.WHXB201301313

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Relationship between Molecular Configuration and Phase Behavior of Partially Hydrolyzed Hydrophobically Modified Polyacrylamide

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