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Modular β ‐cyclodextrin and polyoxyethylene ether modified water‐soluble polyacrylamide for shale hydration inhibition
Author(s) -
Jiang Wenchao,
Ye Zhongbin,
Gou Shaohua,
Liu Xiangjun,
Liang Lixi,
Wang Wan,
Song Zewen
Publication year - 2016
Publication title -
polymers for advanced technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.61
H-Index - 90
eISSN - 1099-1581
pISSN - 1042-7147
DOI - 10.1002/pat.3623
Subject(s) - thermogravimetric analysis , copolymer , differential scanning calorimetry , polymer chemistry , materials science , acrylic acid , nuclear chemistry , montmorillonite , chemistry , organic chemistry , polymer , composite material , physics , thermodynamics
A novel water‐soluble copolymer was prepared from acrylamide (AM), acrylic acid (AA), mono‐2‐O‐(allyloxy‐2‐hydroxyl‐propyl)‐ β ‐cyclodextrin ( O‐β ‐CD) and allyl alcohol polyoxyethylene ether (APEG), which was characterized with infrared spectroscopy, proton nuclear magnetic resonance spectroscopy, 13 C‐nuclear magnetic resonance spectrometry and static light scattering. This new copolymer combining polyglycols and the massive hydroxyl groups and cavity structure of β ‐CD was investigated for inhibiting shale hydration. Based on the salt‐tolerance test, thermogravimetric‐differential scanning calorimetry‐mass spectrometer analyses, copolymer AM/AA/APEG/ O‐β ‐CD has made progress in the salt and temperature resistances. Moreover, the remarkable inhibiting‐hydration performance of copolymer was found as evidenced by the reduction of interlayer spacing of sodium montmorillonite and the high retention rates of indentation hardness of shale cores. Copyright © 2015 John Wiley & Sons, Ltd.