HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Life Science / Faculty of Advanced Life Science >
Peer-reviewed Journal Articles, etc >

Molecular structure and properties of click hydrogels with controlled dangling end defect

Files in This Item:
Molecular Structure.pdf1.11 MBPDFView/Open
Supporting Information.docx818.5 kBMicrosoft Word XMLView/Open
Please use this identifier to cite or link to this item:

Title: Molecular structure and properties of click hydrogels with controlled dangling end defect
Authors: Zhang, Ao-kai Browse this author
Ling, Jun Browse this author
Li, Kewen Browse this author
Fu, Guo-dong Browse this author
Nakajima, Tasuku Browse this author
Nonoyama, Takayuki Browse this author
Kurokawa, Takayuki Browse this author
Gong, Jian Ping Browse this author →KAKEN DB
Keywords: Affine model
click chemistry
dangling ends
Gent model
mechanical properties
Monte Carlo simulation
network inhomogeneity
Phantom model
structure-property relations
Issue Date: 1-Jul-2016
Publisher: Wiley
Journal Title: Journal of Polymer Science Part B: Polymer Physics
Volume: 54
Issue: 13
Start Page: 1227
End Page: 1236
Publisher DOI: 10.1002/polb.24028
Abstract: In this study, controlled amount of dangling ends is introduced to the two series of poly(ethylene glycol)-based hydrogel networks with three and four crosslinking functionality by using click chemistry. The structure of the gels with regulated defect percentage is confirmed by comparing the results of low-field NMR characterization and Monte Carlo simulation. The mechanical properties of these gels were characterized by tensile stress–strain behaviors of the gels, and the results are analyzed by Gent model and Mooney–Rivlin model. The shear modulus of the swollen gels is found to be dependent on the functionality of the network, and decreases with the defect percentage. Furthermore, the value of shear modulus well obeys the Phantom model for all the gels with varied percentage of the defects. The maximum extension ratio, obtained from the fitting of Gent model, is also found to be dependent on the functionality of the network, and does not change with the defect percentage, except at very high defect percentage. The value of the maximum extension ratio is between that predicted from Phantom model and the Affine model. This indicates that at the large deformation, the fluctuation of the crosslinking points is suppressed for some extend but still exists. Polymer volume fractions at various defect percentages obtained from prediction of Flory–Rehner model are found to be in well agreement with the swelling experiment. All these results indicate that click chemistry is a powerful method to regulate the network structure and mechanical properties of the gels.
Rights: This is the peer reviewed version of the following article: J. Polym. Sci., Part B: Polym. Phys. 2016, 54, 1227–1236, which has been published in final form at 10.1002/polb.24028. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving.
Type: article (author version)
Appears in Collections:生命科学院・先端生命科学研究院 (Graduate School of Life Science / Faculty of Advanced Life Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 龔 剣萍 (Gong Jian Ping)

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University