Robust bonding and one-step facile synthesis of tough hydrogels with desirable shape by virtue of the double network structure

被引：96

作者：

Saito, Junji ^{[2
]}

Furukawa, Hidemitsu ^{[1
,3
]}

Kurokawa, Takayuki ^{[1
,4
]}

Kuwabara, Rikimaru ^{[2
]}

Kuroda, Shinya ^{[2
]}

Hu, Jian ^{[2
]}

Tanaka, Yoshimi ^{[1
]}

Gong, Jian Ping ^{[1
]}

Kitamura, Nobuto ^{[5
]}

Yasuda, Kazunori ^{[5
]}

机构：

[1] Hokkaido Univ, Fac Adv Life Sci, Sapporo, Hokkaido 0600810, Japan

[2] Hokkaido Univ, Grad Sch Sci, Sapporo, Hokkaido 0600810, Japan

[3] Yamagata Univ, Dept Mech Syst Engn, Grad Sch Sci & Engn, Yonezawa, Yamagata 9928510, Japan

[4] Hokkaido Univ, Creat Res Initiat Sousei, Sapporo, Hokkaido 0010021, Japan

[5] Hokkaido,Univ, Dept Sports Med & Joint Surg, Grad Sch Med, Sapporo, Hokkaido 0608638, Japan

来源：

POLYMER CHEMISTRY | 2011年 / 2卷 / 03期

关键词：

CRACK TIPS; GELS; ENTANGLEMENT; FRACTURE; MODEL;

D O I：

10.1039/c0py00272k

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Robust bonding of a hydrogel in aqueous environment, either to another hydrogel or to a solid, is one of the major unsolved issues for the practical applications of hydrogels in various fields. Here we report robust bonding between a pair of hydrogel sheets, containing over 90 wt% of water, by applying the double-network (DN) structure. In the optimal condition, the peeling energy of the united gel sheets reaches 1200 J m(-2), which is comparable to the bulk fracture energy of a normal type of tough DN gels. This hydrogel bonding technique is also applied to form tough bonding between hydrogel and plastic plates. Furthermore, based on this technique, we have developed a facile method to synthesize robust double network hydrogels with any desirable free-shape from micro-gel precursors. These novel techniques will substantially merit the applications of the tough hydrogels in various fields, such as an artificial meniscus.

引用

页码：575 / 580

页数：6