The Effect of NaCl Addition on the Rheological Behavior of Hydrophobically Modified Polyacrylamide/Sodium Dodecyl Benzene Sulfonate (SDBS) Solutions

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The Effect of NaCl Addition on the Rheological Behavior of Hydrophobically Modified Polyacrylamide/Sodium Dodecyl Benzene Sulfonate (SDBS) Solutions

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- The Effect of NaCl Addition on the Rheological Behavior of Hydrophobically Modified Polyacrylamide/Sodium Dodecyl Benzene Sulfonate (SDBS) Solutions
- Polymer Bulletin Vol. 28, Issue 8, Pages: 77-86(2015)
- 作者机构：
  
  1.西南石油大学化学化工学院，成都　610500
  2.油气藏地质及开发工程国家重点实验室，成都　610500
- 作者简介：
- 基金信息：
- DOI：10.14028/j.cnki.1003-3726.2015.08.010
  CLC：
- Published：2015-08，
  
  Received：05 January 2015，
  
  Revised：23 April 2015，
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Ru-sen FENG, Xue JIANG, Yong-jun GUO, Jiang KOU, Di PU, Yang ZHOU, Jun-hua CHEN. The Effect of NaCl Addition on the Rheological Behavior of Hydrophobically Modified Polyacrylamide/Sodium Dodecyl Benzene Sulfonate (SDBS) Solutions. [J]. Polymer Bulletin 28(8):77-86(2015)
DOI：

Ru-sen FENG, Xue JIANG, Yong-jun GUO, Jiang KOU, Di PU, Yang ZHOU, Jun-hua CHEN. The Effect of NaCl Addition on the Rheological Behavior of Hydrophobically Modified Polyacrylamide/Sodium Dodecyl Benzene Sulfonate (SDBS) Solutions. [J]. Polymer Bulletin 28(8):77-86(2015) DOI： 10.14028/j.cnki.1003-3726.2015.08.010.

摘要

本实验研究了不同浓度NaCl对疏水缔合聚合物/SDBS复合体系的流变性能的影响，研究表明：不同浓度的NaCl对聚／表体系的作用模型各异，其在低NaCl浓度时，当SDBS浓度为0〜100mg/L时，体系出现增黏，最大增黏率为566. 5 %，增黏幅度随着NaCl浓度增加而下降；而在高NaCl浓度时，体系同样出现增黏，增黏区间随着NaCl浓度的增加而增大。通过流变测试、荧光光谱实验，进一步验证了不同NaCl浓度对聚／表相互作用的影响，发现NaCl的加入增强了聚／表相互作用，促进了聚／表混合聚集体的形成；同时发现NaCl的浓度影响着SDBS的溶解度。

Abstract

In this paper

the effect of different concentrations of NaCl on rheological properties of the hydrophobic associating polymer/SDBS systems was studied. The results show that different NaCl concentration has vary on the role model of the polymer/surfactant systems

when at low NaCl concentration

the thickening amplitude is SDBS concentration of 0〜100mg/L

the maximum growth multiple of viscosity is 5. 665

and as the addition of NaCl

thickening amplitude increases; when the middle NaCl concentration

which viscosity-increasing section increases with increasing NaCl concentration

However

the magnitude of increase in viscosity rapidiyrapidly decline with increasing NaCl concentration

the biggest growth multiple is 3. 100; And high NaCl concentrations

the system is also found thickening

thickening zone widens by the addition of NaCl

viscosity stable value also increases. Rheological and fluorescence experiments further provide the influence of the interaction at different NaCl concentrations on the polymer/surfactant systems

addition of NaCl was found to enhances the polymer/surfactant systems interaction and promotes form mixing aggregates of the polymer/ surfactant; also found high concentrations of NaCl affect the SDBS solubility

thereby affecting the the polymer/surfactant systems interactions.

关键词

疏水缔合聚合物十二烷基苯磺酸钠流变性荧光疏水微区

Keywords

Hydrophobic associative polymerDodecyl benzene sulfonateRheologyFluorescenceHydrophobic microdomains

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