Citation: YUAN Rui, LI Ying, FANG Hong-Bo, WANG Wei. Relationship between Molecular Configuration and Phase Behavior of Partially Hydrolyzed Hydrophobically Modified Polyacrylamide[J]. Acta Physico-Chimica Sinica doi: 10.3866/PKU.WHXB201301313 shu

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

YUAN Rui ¹ ,
LI Ying ^1, ,
FANG Hong-Bo ² ,
WANG Wei ²

1.
1 Key Laboratory for Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, P. R. China;
2 Design Institute, Shengli Oilfield, Dongying 257015, Shandong Province, P. R. China

Received Date: 26 October 2012
Available Online: 31 January 2013
Fund Project: 国家自然科学基金(21173134) (21173134)国家科技重大专项(2008ZX05011-002)资助项目 (2008ZX05011-002)

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.
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