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ABSTRACT
The purpose of this study is to improve the low absorbency under load and the permeability of a superabsorbent polymer (SAP)-based on itaconic acid by introducing a polycationic salt into the core-SAP to form ionic bonds as well as by adding modified silica to the surface-crosslinked SAP. The core-SAP was synthesized by aqueous polymerization using itaconic acid, vinyl sulfonic acid, and tetra (ethylene glycol) diacrylate. The absorbency under loading of the core-SAP was improved using aluminum sulfate and zirconium sulfate as polycationic salts. The surface-crosslinked core-SAP with the modified silica showed increased permeability.
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Notes on contributors
Yong Rok Kwon
Mr. Kwon is currently studying at Hanyang University as a master’s degree. His interest is organic-inorganic hybrid polymer composites.
Seok Ju Hong
Mr. Hong achieved Master Degree at Hanyang University in August 2020. His interest is biomass-based polymer materials.
Seung Ho Lim
Mr. Seungho Lim is studying at Hanyang University as a master’s degree. His interest is functional polymer composites.
Jung Soo Kim
Mr. Kim received a master’s degree from Yonsei University and is working at the Korea Institute of Industrial Technology. His interests are synthetic catalysts and functional polymers.
Young Wook Chang
Prof. Chang has been working at Hanyang University for 25 years. His field of interest is polymer and nanocomposite materials.
Dong Hyun Kim
Dr. Kim is the supervisor of Mr. Kwon, Hong, and Lim. He works at the Korea Institute of Industrial Technology. His interests are high-performance functional polymers and biodegradable polymers.