Enhancing the mechanical properties and self-healing efficiency of hydroxyethyl cellulose-based conductive hydrogels via supramolecular interactions

Published on Aug 1, 2018in European Polymer Journal3.862
· DOI :10.1016/J.EURPOLYMJ.2018.05.025
Imtiaz Hussain8
Estimated H-index: 8
(SEU: Southeast University),
Imtiaz Hussain14
Estimated H-index: 14
(SEU: Southeast University)
+ 4 AuthorsGuodong Fu36
Estimated H-index: 36
(SEU: Southeast University)
Source
Abstract
Abstract Natural polymer based self-healing hydrogels have attracted intense consideration due to their attributable and a wide range of applications. However, to design hydrogels having excellent self-healing efficiency and super mechanical strength is still a big challenge. Herein, we report hydroxyethyl cellulose based self-healing conducting hydrogels with enhanced mechanical properties by the molecular engineering of Fe 3+ ions among the functional groups of polyacrylic acid-co-polyacrylamide and hydroxyethyl cellulose chain through supramolecular interactions. The engineered hydrogels exhibit a high mechanical strength with a tensile stress of 3.50 MPa and tensile strain of 1245%, along with compression stress of 32 MPa. These hydrogels also show about 98% self-healing efficiency as well as exhibit 2.4 × 10 −3  S/cm electrical conductive. Moreover, manipulating the various parameters, the mechanical and self-healing efficiency of the prepared hydrogel can be adjusted. This work will encourage researchers to focus on this facile technique for the synthesis of self-healing hydrogel materials with enhanced mechanical properties.
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