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Surfactant-assisted synthesis of a transparent ionic nanocomposite hydrogel
Abstract It was a challenge to prepare ionic nanocomposite hydrogels, because of the precipitation of the ionic monomer and clay complexes. In this work, a transparent ionic nanocomposite hydrogel cross-linked by Laponite XLG was successfully synthesized via the in-situ free radical polymerization of ionic monomer acrylic acid (AA) with assistance of sodium dodecyl sulfate (SDS). The addition of SDS can successfully avoid the aggregation of Laponite in the ionic monomer AA. It was a new approach to obtain ionic nanocomposite hydrogels with high transparency. The transparency of the hydrogel was changed reversibly with the temperature alternate changing. The elongation at break of the hydrogels was 2000% and the ultimate tensile strength was about 162kPa. The facile method is important to the fabrication and potential applications of nanocomposite hydrogels.
Graphical abstract Display Omitted
Highlights An ionic nanocomposite hydrogel was successfully synthesized. AA can disperse uniformly in Laponite dispersion with assistance of SDS. The ionic nanocomposite hydrogels demonstrated an excellent optical transparency. The hydrogel exhibited good reversibility with temperature alternate changing. The hydrogels showed high tensibility.
Surfactant-assisted synthesis of a transparent ionic nanocomposite hydrogel
Abstract It was a challenge to prepare ionic nanocomposite hydrogels, because of the precipitation of the ionic monomer and clay complexes. In this work, a transparent ionic nanocomposite hydrogel cross-linked by Laponite XLG was successfully synthesized via the in-situ free radical polymerization of ionic monomer acrylic acid (AA) with assistance of sodium dodecyl sulfate (SDS). The addition of SDS can successfully avoid the aggregation of Laponite in the ionic monomer AA. It was a new approach to obtain ionic nanocomposite hydrogels with high transparency. The transparency of the hydrogel was changed reversibly with the temperature alternate changing. The elongation at break of the hydrogels was 2000% and the ultimate tensile strength was about 162kPa. The facile method is important to the fabrication and potential applications of nanocomposite hydrogels.
Graphical abstract Display Omitted
Highlights An ionic nanocomposite hydrogel was successfully synthesized. AA can disperse uniformly in Laponite dispersion with assistance of SDS. The ionic nanocomposite hydrogels demonstrated an excellent optical transparency. The hydrogel exhibited good reversibility with temperature alternate changing. The hydrogels showed high tensibility.
Surfactant-assisted synthesis of a transparent ionic nanocomposite hydrogel
Li, Huili (author) / Gu, Renbao (author) / Xu, Shimei (author) / Abudurman, Adalati (author) / Wang, Jide (author)
Applied Clay Science ; 101 ; 335-338
2014-08-19
4 pages
Article (Journal)
Electronic Resource
English
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