Adhesive and self-healing soft gel based on metal-coordinated imidazole-containing polyaspartamide

A supramolecular gel formed by coordination of Ni(II) with poly(2-hydroxyethyl-co-1-(3-imidazolyl)propyl aspartamide) (PHEA-API) is reported. Novel polyaspartamide copolymers, PHEA-API, were prepared from polysuccinimide, which is the thermal polycondensation product of aspartic acid, via a successi...

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Bibliographic Details
Published in:Colloid and polymer science 2017-04, Vol.295 (4), p.655-664
Main Authors: Tran, Ngoc Bich, Moon, Jong Ryul, Jeon, Young Sil, Kim, Jaeyun, Kim, Ji-Heung
Format: Article
Language:English
Subjects:
Adhesive strength
Adhesives
Aspartic acid
Biomedical materials
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Complex Fluids and Microfluidics
Copolymers
Food Science
Hydrogels
Imidazole
Ligands
Nanotechnology and Microengineering
Original Contribution
Physical Chemistry
Polymer Sciences
Soft and Granular Matter
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Summary:A supramolecular gel formed by coordination of Ni(II) with poly(2-hydroxyethyl-co-1-(3-imidazolyl)propyl aspartamide) (PHEA-API) is reported. Novel polyaspartamide copolymers, PHEA-API, were prepared from polysuccinimide, which is the thermal polycondensation product of aspartic acid, via a successive ring-opening reaction using 1-(3-aminopropyl imidazole) (API) and ethanolamine (EA). Ni(II)-mediated gels, cross-linked by metal–ligand coordination, showed self-healing viscoelastic behavior in rheological analysis, which was also well reflected in high bulk adhesion strength on various different substrates. The approach described here results in a promising self-healing adhesive hydrogel with potential for a variety of industrial and biomedical applications including tissue adhesive, sealant, and smart drug delivery systems.
ISSN:0303-402X
1435-1536
DOI:10.1007/s00396-017-4051-7