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Volume 3, Issue 4 (Suppl)
Polym Sci
ISSN: 2471-9935 Polym Sci, an open access journal
October 12-13, 2017 Osaka, Japan
Annual Meeting on
Biopolymers and Drug Delivery Systems
Biopolymers Meeting 2017
October 12-13 2017
Page 47
Preparation of hydrogels using various starch Aldehydes
Jungmin Lee
Seoul National University, Republic of Korea
H
ydrogels are hydrophilic, three-dimensional, and expandable matrices that are produced through chemical and/or physical
crosslinking of certain polymers. In some cases, polysaccharide-based hydrogels have been prepared from a single polysaccharide
such as Carboxy Methyl Cellulose (CMC) and starch. CMC is an anionic water-soluble natural polymer derivative, which is widely
used in detergents, oil exploration, and in the food, paper, and textile industries because of its viscosity-increasing properties. Starch
is widely used in different fields such as food, environmental-friendly plastics, and medicine due to its low cost, biodegradability, and
renewability. In this study, the polysaccharide hydrogels were prepared by esterification between hydroxyl groups of CMC and aldehyde
group of modified starch. Epichlorohydrin and citric acid were used for crosslinker. The starches used in the experiments were corn
starch, potato starch, and soluble starch. Sodium periodate was used as the oxidizing agent. The degree of aldehydes substitution (DS)
of hydroxyl groups was varied with the amount of oxidizing agent, and the DS showed a minimum of 0.87 to a maximum of 2.79. As
a result of analysis of the hydrogels, epichlorohydrin crosslinker showed a high swelling ratio when reacted with native starch. On the
other hand, citric acid crosslinker showed good results when reacted with starch aldehydes. The maximum swelling ratio of hydrogel
was about 50.
Biography
Jungmin Lee graduated from Seoul National University in 2008. He received a master’s degree from Seoul National University in 2013. He is a PhD student of
Department of Biosystems and Biomaterials Science and Engineering, Seoul National University. He has published more than 5 papers in reputed journals.
archon04@snu.ac.krnanotechnology
Jungmin Lee, Polym Sci 2017, 3:4
DOI: 10.4172/2471-9935-C1-006