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|
| Type |
Poster Presentation |
| Area |
Polymer Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
POLY.P-37 |
| Subject |
Advanced catechol-modified chitosan hydrogels with the inducement of Iron (III) ion at different pH |
| Authors |
Quang Nguyen Ngoc, Daewon Sohn1,*
Chemistry, Hanyang University, Vietnam
1Department of Chemistry, Hanyang University, Korea
|
| Abstract |
Chitosan (CS) is a natural polycationic polysaccharide and pH sensitive polymer with incomplete deacetylation from claiming chitin. It is also a guaranteeing material in terms of pharmaceutical, chemical, and sustenance industry due to its exceptional structure (reactive –OH and –NH2 groups). In this study, a catechol-functionalized chitosan (CCS, for an eminent level for substitution) was synthesized and propelled by marine mussel cuticles in place on research those intricate connections between Fe3+ and catechol under acidic conditions. The ratios of catechol, chitosan and other reagents decide the structure of the hydrogel. The gel formation is then well-maintained by dual cross-linking through electrostatic interactions between Fe3+ and CCS and covalent catechol-coupling-based coordinate bonds. The hydrogels showed enhanced cohesiveness and shock-absorbing properties with increasing pH due to coordinate bonds inspired by mussel byssal threads. Thus, the gelation time, rheological properties, UV-vis and 1HNMR spectroscopy, and the morphologic aspects were elucidated to describe those crosslinking components and the physical properties of the chitosan backbones and hydrogel frameworks. |
| E-mail |
chemistquang95@gmail.com |
|
121st General Meeting of the KCS