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http://dx.doi.org/10.12772/TSE.2019.56.177

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

Kang, Min Kwan (Reliability Assessment Center for Chemical Materials, Korea Research Institute of Chemical Technology)
Jeon, Jin (Department of Advanced Materials and Chemical Engineering, Hannam University)
Na, Yang Ho (Department of Advanced Materials and Chemical Engineering, Hannam University)
Publication Information
Textile Science and Engineering / v.56, no.3, 2019 , pp. 177-183 More about this Journal
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.
Keywords
hydrogel; montmorillonite; nanocomposite; small angle X-ray scattering; low critical solution temperature (LCST);
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