疏水缔合聚丙烯酰胺在盐水中的自组装行为

doi:10.3866/PKU.WHXB201202171

Abstract

Abstract: The self-assembly behavior of hydrophobically associating polyacrylamide (HAPAM) in salt solution was studied by static light scattering, dynamic light scattering, and atomic force microscopy (AFM). The apparent weight average molecular weight (M_w,a), root mean square radius of gyration (<R_g>), hydrodynamic radius (<R_h>), and the second virial coefficient (A₂), were investigated. The ratio of <R_g> to <R_h> was used to determine the molecular shape of the polymer in salt solution. As the salt concentration increased, the polymer chain transformed from stretch to curl.

Key words: Hydrophobically associating polyacrylamide, Dynamic light scattering, Static light scattering, Viscosity, Aggregation behavior, Atomic force microscopy

CHEN Hong, WU Xiao-Yan, YE Zhong-Bin, HAN Li-Juan, LUO Ping-Ya. Self-Assembly Behavior of Hydrophobically Associating Polyacrylamide in Salt Solution[J]. Acta Phys. -Chim. Sin. 2012, 28(04), 903-908. doi: 10.3866/PKU.WHXB201202171

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Self-Assembly Behavior of Hydrophobically Associating Polyacrylamide in Salt Solution

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