High clay content nanocomposite hydrogels with surprising mechanical strength and interesting deswelling kinetics |
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| Authors: | Yang Liu Xiaoli Liu Bin Sun Hans-Juergen P Adler |
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| Affiliation: | a State Key Lab for Modification of Chemical Fiber and Polymer Materials, College of Material Science and Engineering, Donghua University, 1882 West Yan-an Road, Shanghai 200051, China
b Institute of Macromolecular Chemistry and Textile Chemistry, Dresden University of Technology, Mommsenstr. 13, D-01069 Dresden, Germany |
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| Abstract: | A series of high hectorite content nanocomposite Poly (N-isopropylacrylamide), (PNIPAAm), hydrogels have been successfully synthesized by choosing a special kind of hectorite (Laponite XLS) modified by tetrasodium pyrophosphate. It was found that these hydrogels show surprising mechanical properties (i.e. tensile strength: 1 MPa, elongation at break: 1400%) and complicated deswelling behavior, which are due to the high clay content of the hydrogels and ionic dispersant contained in Laponite XLS, respectively. |
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| Keywords: | Hydrogels Poly(N-isopropylacrylamide) Hectorite |
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