Highly Elastic and Deformable Hydrogel Formed from Tetra-arm Polymers

被引：145

作者：

Sakai, Takamasa ^{[1
]}

Akagi, Yuki ^{[1
]}

Matsunaga, Takuro ^{[2
]}

Kurakazu, Manami ^{[1
]}

Chung, Ung-il ^{[1
]}

Shibayama, Mitsuhiro ^{[2
]}

机构：

[1] Univ Tokyo, Dept Bioengn, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2010年 / 31卷 / 22期

基金：

日本学术振兴会;

关键词：

biomaterials; high strength; hydrogels; ideal polymer network; soft matter; ANGLE NEUTRON-SCATTERING; NETWORKS; GELS; SWOLLEN; STRENGTH; CHAINS; SANS;

D O I：

10.1002/marc.201000286

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

After decades of efforts by many researchers, we have succeeded in realizing a near-ideal polymer network. This network, the Tetra network, is made by cross-end-coupling of tetra-arm polymer modules. The mechanical energy dissipation was extremely low (tan delta approximate to 10(-4)). The macroscopic stress-strain relationship of the Tetra network was in good agreement with that of microscopic elastic blobs. The maximum breaking strength was extremely high (>= 27 MPa). These results indicate that the Tetra network is closer to an ideal polymer network than any other conventional model networks. Because the Tetra network can be treated as uniformly packed elastic blobs, it should help apply the knowledge of single polymer chains seamlessly to the design of polymer materials and help further develop the theory of rubber elasticity.

引用

页码：1954 / 1959

页数：6

共 26 条

[1]

Abe H., 1996, DATA BOOK MECH PROPE

[2] LARGE-SCALE HETEROGENEITIES IN RANDOMLY CROSS-LINKED NETWORKS [J].