|
Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Life Science / Faculty of Advanced Life Science >
Peer-reviewed Journal Articles, etc >
Modulation and Characterization of the Double Network Hydrogel Surface-Bulk Transition
| Title: | Modulation and Characterization of the Double Network Hydrogel Surface-Bulk Transition |
| Authors: | Frauenlob, Martin Browse this author | | King, Daniel R. Browse this author | | Guo, Honglei Browse this author | | Ishihara, Seiichiro Browse this author →KAKEN DB | | Tsuda, Masumi Browse this author →KAKEN DB | | Kurokawa, Takayuki Browse this author →KAKEN DB | | Haga, Hisashi Browse this author →KAKEN DB | | Tanaka, Shinya Browse this author →KAKEN DB | | Gong, Jian Ping Browse this author →KAKEN DB |
| Issue Date: | 10-Sep-2019 |
| Publisher: | American Chemical Society(ACS) |
| Journal Title: | Macromolecules |
| Volume: | 52 |
| Issue: | 17 |
| Start Page: | 6704 |
| End Page: | 6713 |
| Publisher DOI: | 10.1021/acs.macromol.9b01399 |
| Abstract: | The hydrogel chemical structure at the gel-solution interface is important toward practical use, especially in tough double network (DN) hydrogels that have promising applications as structural biomaterials. In this work, we regulate the surface chemical structure of DN hydrogels and the surface–bulk transition by the molding substrate used for the synthesis of the second network. To characterize the surface and bulk structure, we combined attenuated total reflectance Fourier-transform infrared spectroscopy and a newly developed microelectrode technique that probe the electric potential distribution within a hydrogel. We found that the polymerization on a repulsive substrate leads to the formation of a thin layer of a second network on the surface of DN hydrogels, which makes the surface different from the bulk. By controlling the second network polymerization conditions and molding substrate, the surface–bulk transition region can be regulated, so that either only the second network or both networks are present at the DN hydrogel surface. Through these findings, we gained a new insight into the structure formation at the DN hydrogel surface, and this leads to easy regulation of the hydrogel surface structure and properties. |
| Rights: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in Macromolecules, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.macromol.9b01399. |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/79235 |
| 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)
|
