On the Necking Phenomenon in Pseudo-Semi-Interpenetrating Double-Network Hydrogels

被引：24

作者：

Es-haghi, S. Shams ^{[1
]}

Leonov, A. I. ^{[1
]}

Weiss, R. A. ^{[1
]}

机构：

[1] Univ Akron, Dept Polymer Engn, Akron, OH 44325 USA

来源：

MACROMOLECULES | 2013年 / 46卷 / 15期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/ma4007494

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A detailed physical picture of necking phenomenon in semi-interpenetrating double-network (SIDN) hydrogels was developed using the tensile mechanics of DN hydrogels synthesized from 3-sulfopropyl acrylate potassium salt (SAPS) and acrylamide (AAm) with different molecular weights. Uniaxial tensile tests for DN hydrogels already damaged by a compression load demonstrated the necking required a first network with a brittle structure. Although necking originates from the brittle nature of the first network, the molecular weight of polymer chains of the second network is an important factor for neck propagation. The finite deformation of DN hydrogels is characterized by two regimes of deformation: one where the neck initiates and a second where it propagates.

引用

页码：6203 / 6208

页数：6

共 17 条

[1] A model of the fracture of double network gels [J].

Brown, Hugh R. .

MACROMOLECULES, 2007, 40 (10) :3815-3818

[2] FEATURES OF NETWORK FORMATION IN THE CHAIN CROSSLINKING (CO)POLYMERIZATION [J].

DUSEK, K ;

GALINA, H ;

MIKES, J .

POLYMER BULLETIN, 1980, 3 (1-2) :19-25

[3] Why are double network hydrogels so tough? [J].

Gong, Jian Ping .

SOFT MATTER, 2010, 6 (12) :2583-2590

[4] Double-network hydrogels with extremely high mechanical strength [J].

Gong, JP ;

Katsuyama, Y ;

Kurokawa, T ;

Osada, Y .

ADVANCED MATERIALS, 2003, 15 (14) :1155-+

[5]

Kawauchi Yasunori, 2009, Journal of Physics: Conference Series, V184, DOI 10.1088/1742-6596/184/1/012016

[6] A theory of necking in semi-crystalline polymers [J].

Leonov, AI .

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2002, 39 (24) :5913-5926

[7]

Mark H. F., 2007, ENCY POLYM SCI TECHN, V2

[8]

Mark J. E., 2007, PHYS PROPERTIES POLY

[9] Biomimetic strain hardening in interpenetrating polymer network hydrogels [J].

Myung, David ;

Koh, Wongun ;

Ko, Jungmin ;

Hu, Yin ;

Carrasco, Michael ;

Noolandi, Jaan ;

Ta, Christopher N. ;

Frank, Curtis W. .

POLYMER, 2007, 48 (18) :5376-5387

[10] Necking phenomenon of double-network gels [J].

Na, YH ;

Tanaka, Y ;

Kawauchi, Y ;

Furukawa, H ;

Sumiyoshi, T ;

Gong, JP ;

Osada, Y .

MACROMOLECULES, 2006, 39 (14) :4641-4645

← 1 2 →