Structure and Temperature-responsive Property of Nanocomposite Hydrogels Based on Montmorillonite 


Vol. 56,  No. 3, pp. 177-183, Jun.  2019
10.12772/TSE.2019.56.177


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  Abstract

Hydrogel is defined as a water-swollen, and crosslinked three-dimensional polymeric network. Owing to their stimuli-response capability, high permeability to small molecules, low friction property, viscoelasticity, and similarity to soft bio-tissues, hydrogels show promising applications in soft robotics, molecular filters, drug delivery, scaffolds for cell culture, and tissue engineering. However, most of the synthetic hydrogels are mechanically too brittle and weak to be used as load-bearing materials. In this study, nanocomposite hydrogels were prepared using clay in nanosheet form to improve mechanical property. The swelling and mechanical behaviors were investigated by varying the chemical composition such as the concentrations of crosslinker and initiator, and the nanostructure of the hydrogels was confirmed by using the X-ray scattering experiments. In addition, the nanocomposite hydrogels containing thermosensitive monomer and ionic monomer were prepared and the low critical solution temperature (LCST) behavior with monomer composition was studied in these nanocomposite hydrogels.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)