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http://dx.doi.org/10.12925/jkocs.2021.38.1.300

Analysis of Number of Elastically Cross-links to Predict the Mechanical Properties of 3D Networked Poly(sodium acrylate) Gel  

Kim, Sang Jin (Department of Chemical Engineering, Soongsil University)
Jeong, Hye-Won (Department of Chemical Engineering, Soongsil University)
Shin, Sung Gyu (Department of Chemical Engineering, Soongsil University)
Cho, Sung Woo (Department of Chemical Engineering, Soongsil University)
Jeong, Jae Hyun (Department of Chemical Engineering, Soongsil University)
Publication Information
Journal of the Korean Applied Science and Technology / v.38, no.1, 2021 , pp. 300-308 More about this Journal
Abstract
In this study, 3D networked poly(sodium acrylate) gel was polymerized and controlled with the crosslinking environment to evaluate the mechanical properties and swelling behavior. In general, as the degree of crosslinking in a pre-gelled solution increases, the swelling ratio of the 3D networked gel decrease while the mechanical strength of the gel increases. Interestingly, this study demonstrates that the polymerization and crosslinking efficiency in gelling process could be depended on the crosslinking environment by evaluating the number of elastically cross-links in 3D networked gel. As a result, the number of elastically corss-links would be changed with 3.6 times as varying of the crosslinking environment while keeping the degree of crosslinking. It is expected that the 3D networked gel would be optimized as an effective absorbing agent for VOCs by using the gel evaluation method based on the number of elastically cross-links.
Keywords
3D networked gel; number of elastically cross-links; degree of crosslinking; degree of neutralization; Crosslinking efficiency;
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