Journal
SOFT MATTER
Volume 9, Issue 42, Pages 10129-10134Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3sm51490k
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Funding
- National Basic Research Program of China (973 Program) [2010CB732203]
- National Natural Science Foundation of China [20874079]
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Usually, it is very difficult to fabricate hydrogels from hydrophobic polyaniline (PANI). In the present work, an electromechanical PANI-cellulose hydrogel, for the first time, was prepared from a PANI-cellulose transparent solution dissolved in a NaOH-urea aqueous system at low temperature by cross-linking with epichlorohydrin. The composite hydrogels displayed a homogeneous macroporous structure, good miscibility, and excellent mechanical strength, as a result of the association of the PANI chains with the cellulose crosslinked networks held together by noncovalent interactions. Moreover, the hydrogels exhibited a continuous and linear crawling motion under a low applied electric field. The motion of the composite hydrogels was an acceleration process, reflecting the characteristics of a rapid electrical response. This work shows the great potential of a smart hydrogel for applications in the field of biomimetic materials.
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