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Water-soluble complexes of an acrylamide copolymer and ionic liquids for inhibiting shale hydration

Gou, Shaohua, Yin, Ting, Liu, Kun and Guo, Qipeng 2015, Water-soluble complexes of an acrylamide copolymer and ionic liquids for inhibiting shale hydration, New journal of chemistry, vol. 39, no. 3, pp. 2155-2161, doi: 10.1039/c4nj01741b.

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Title Water-soluble complexes of an acrylamide copolymer and ionic liquids for inhibiting shale hydration
Author(s) Gou, Shaohua
Yin, Ting
Liu, Kun
Guo, Qipeng
Journal name New journal of chemistry
Volume number 39
Issue number 3
Start page 2155
End page 2161
Total pages 7
Publisher Royal Society of Chemistry
Place of publication Paris, France
Publication date 2015-03-01
ISSN 1144-0546
1369-9261
Summary Here, we report water-soluble complexes of an acrylamide copolymer and ionic liquids for inhibiting shale hydration. The copolymer, denoted as PAAT, was synthesised via copolymerisation of acrylamide (AM), acrylic acid (AA) and N,N-diallyl-4-methylbenzenesulfonamide (TCDAP), and the ionic liquids used were 3-methyl imidazoliumcation-based tetrafluoroborates. X-ray diffraction showed that compared with commonly used KCl, the water-soluble complex of PAAT with 2 wt% ionic liquid 1-methyl-3-H-imidazolium tetrafluoroborate (HmimBF4) could remarkably reduce the d-spacing of sodium montmorillonite in water from 19.24 to 13.16 Å and effectively inhibit clay swelling. It was also found that the PAAT-HmimBF4 complex with 2 wt% HmimBF4 could retain 75% of the shale indentation hardness and increase the anti-swelling ratio to 85%. 13C NMR revealed that there existed interactions between PAAT and HmimBF4. Moreover, the thermal stability of the PAAT-HmimBF4 complex is superior to PAAT, suggesting that this water-soluble complex can be used to inhibit clay and shale hydration in high-temperature oil and gas wells.
Language eng
DOI 10.1039/c4nj01741b
Field of Research 091209 Polymers and Plastics
Socio Economic Objective 860607 Plastic Products (incl. Construction Materials)
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, Royal Society of Chemistry
Persistent URL http://hdl.handle.net/10536/DRO/DU:30073817

Document type: Journal Article
Collection: Institute for Frontier Materials
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Created: Mon, 17 Aug 2015, 16:01:13 EST

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