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Citation: GUO Yong-Jun, LI Fu-Sheng, LI Lin-Hui, ZHENG Yan, HUANG Xiao-Hong, LUO Ping-Ya. Adsorption Behavior of Water-Soluble Hydrophobic Associative Polymer at Water/Kaolin Interface[J]. Chinese Journal of Applied Chemistry, ;2002, 19(1): 26-29. shu

Adsorption Behavior of Water-Soluble Hydrophobic Associative Polymer at Water/Kaolin Interface

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a Department of Chemical Engeneering, Southwest Petroleum Institute, Nanchong 637001;
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b State Key Laboratory of Oil and Gas Reservior Geology and Exploitation Engineering, Nanchong;
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c General Company of Science Technology Development, Southwest Petroleum Institute, Nanchong

Corresponding author: GUO Yong-Jun,
Received Date: 23 April 2001
Available Online: 20 July 2001
Fund Project: 国家自然科学基金(29974022) (29974022)油气藏地质及开发工程国家重点实验室开放基金(PLN0112)资助课题 (PLN0112)

The adsorption behavior of water-soluble hydrophobic association copolymer prepared from acrylamide(AM), sodium acrylate(NaAA) and octadecyl dimethylallyl ammonium chloride(C18DMAAC) at water/kaolin interface and the influences of sodium dodecyl benzene sulfonate(SDBS), sodium chloride(NaCl) and calcium chloride(CaCl₂) on the adsorption behavior have been studied. The adsorbtion capacity of the copolymer was found firstly increased with the increase in equilibrium concentration of the copolymer, then became to a nearly constant value being characteristic of a multilayer adsorption. The amount of the adsorbed copolymer increased with the increase of NaCl and CaCl₂ concentration firstly, then kept constant at higher salt concentration. The amount of the adsorbed copolymer decreased monotonously with the increase of SDBS concentration in the solution.
- water-soluble hydrophobic associative polymer,
- surfactant,
- adsorption,
- kaolin
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