4.7 Article

Facilely control the SDS ability to reduce the interfacial tension via the host-guest recognition

期刊

JOURNAL OF MOLECULAR LIQUIDS
卷 255, 期 -, 页码 370-374

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.molliq.2018.01.181

关键词

beta-Cyclodextrin; Sodium dodecyl sulfate; Host-guest recognition; Interfacial tension; Enhanced oil recovery

资金

  1. National Natural Science Foundation of China [21403301]
  2. Basic Fundamental Research Funds of Qingdao [16-5-1-41-jch]
  3. Fundamental Research Funds for the Central Universities [16CX02058A]
  4. Foundation of Key Laboratory of Colloid and Interface Chemistry (Shandong University) Ministry of Education [201402]
  5. National Training Program of Innovation and Entrepreneurship for Undergraduates [20171044]

向作者/读者索取更多资源

Supramolecular chemistry provides a facile and feasible method to construct desired compounds via noncovalent interactions. Based on the host-guest recognition, the surfactant/cyclodextrin (CD) inclusion exhibited the excellent performance in potential application of various fields. The sodium dodecyl sulfate (SDS)/beta-CD inclusion was introduced to chemical enhanced oil recovery. The fabrication of SDS/beta-CD inclusion seriously affected the SDS ability to reduce the interfacial tension (IFT) between a model oil (toluene and n-decane, v/v = 1:1) and water, which may be the key factor to reduce the adsorption loss of SDS molecules via the addition of beta-CD molecules. To reactivate the interfacial activity of SDS molecules, we employed the adamantanamine chloride (AD) to the SDS/beta-CD inclusion solutions. Interestingly, the electrostatic attraction between AD/beta-CD inclusion and SDS molecule dominated the change tendency of IFT values, which was further verified by the systematical investigations on the salinity and temperature effects on the IFT. (C) 2018 Elsevier B.V. All rights reserved.

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