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Synthesis of amphoteric nanocomposite hydrogels with ultrahigh tensibility
Author(s) -
Du Juan,
Wu Ronglan,
Liu Huanhuan,
Nie Xudong,
Li Huili,
Xu Shimei,
Wang Jide
Publication year - 2015
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22970
Subject(s) - materials science , self healing hydrogels , ultimate tensile strength , methacrylamide , copolymer , nanocomposite , composite material , acrylic acid , aqueous solution , dispersion (optics) , chemical engineering , polymer chemistry , polymer , organic chemistry , acrylamide , chemistry , physics , optics , engineering
Amphoteric nanocomposite hydrogels (NC gels) were synthesized by in situ copolymerization of acrylic acid (AA) and N [‐3(dimethylamino)propyl] methacrylamide (DMAPMA) in an aqueous dispersion of laponite XLG. Mechanical analyses demonstrated that this type of hydrogels had a combination of high tensile strength and excellent stretchability. The tensile strength was increased by 5 times up to 316 kPa when the laponite content was increased from 0.1 wt% to 20 wt%, and a maximum fracture strain of 2,317% was achieved for hydrogels containing 3 wt% laponite. Additionally, the marked improvements in strength were achieved with minimal sacrifice of the tensibility. This work provided a continuation to previous efforts of the preparation and properties of ionic NC gels. POLYM. COMPOS. 36:538–544, 2015. © 2014 Society of Plastics Engineers
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