Issue 24, 2017

A physically cross-linked self-healable double-network polymer hydrogel as a framework for nanomaterial

Abstract

To investigate the formation mechanism of a physically cross-linked double-network hydrogel and its application as a framework for nanomaterial, in this work, calcium alginate and polyvinyl alcohol (PVA) were selected as hydrogel-forming polymers to form a double-network hydrogel utilized as a framework for graphene oxide (GO). The results showed that completely physically cross-linked double-network hydrogels were obtained with good shape-recovery and self-healing properties. Moreover, the first network had a significant influence on the properties of double networks: when calcium alginate acts as the first network, the hydrogels have denser structures, a lower swelling ratio and higher mechanical properties. The GO/double-network composite hydrogel shows a 3D porous network structure with no obvious aggregation of GO nanosheets and an excellent removal rate for methylene blue. The results indicate the potential of the polymer double network utilized as a nanomaterial framework in biomedical and environmental areas.

Graphical abstract: A physically cross-linked self-healable double-network polymer hydrogel as a framework for nanomaterial

Supplementary files

Article information

Article type
Paper
Submitted
07 Sep 2017
Accepted
02 Nov 2017
First published
03 Nov 2017

New J. Chem., 2017,41, 15127-15135

A physically cross-linked self-healable double-network polymer hydrogel as a framework for nanomaterial

Y. Zhuang, Y. Kong, K. Han, H. Hao and B. Shi, New J. Chem., 2017, 41, 15127 DOI: 10.1039/C7NJ03392C

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