A "Self-Pinning" Adhesive Based on Responsive Surface Wrinkles

被引：46

作者：

Chan, Edwin P. ^{[1
]}

Karp, Jeffrey M. ^{[1
,2
,3
]}

Langer, Robert S. ^{[1
,4
]}

机构：

[1] MIT, Harvard Mit Div Hlth Sci & Technol, Cambridge, MA 02139 USA

[2] Harvard Univ, Brigham & Womens Hosp, Ctr Regenerat Therapeut, Dept Med,Med Sch, Cambridge, MA 02319 USA

[3] Harvard Univ, Harvard Stem Cell Inst, Cambridge, MA 02138 USA

[4] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 2011年 / 49卷 / 01期

基金：

美国国家科学基金会;

关键词：

adhesion; adhesives; biomaterials; hydrogels; stimuli-sensitive polymers; surfaces; swelling; CREASING INSTABILITY; THIN-FILMS; HYDROGELS; PATTERNS; CONTACT; GELS;

D O I：

10.1002/polb.22165

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

Surface wrinkles are interesting since they form spontaneously into well-defined patterns. The mechanism of formation is well-studied and is associated with the development of a critical compressive stress that induces the elastic instability. In this work, we demonstrate surface wrinkles that dynamically change in response to a stimulus can improve interfacial adhesion with a hydrogel surface through the dynamic evolution of the wrinkle morphology. We observe that this control is related to the local pinning of the crack separation pathway facilitated by the surface wrinkles during debonding, which is dependent on the contact time with the hydrogel. (C) 2010 Wiley Periodicals, Inc. J Polym Sci Part B: Polym Phys 49: 40-44, 2011

引用

页码：40 / 44

页数：5

共 26 条

[1]

Spontaneous formation of ordered structures in thin films of metals supported on an elastomeric polymer [J].

Bowden, N ;

Brittain, S ;

Evans, AG ;

Hutchinson, JW ;

Whitesides, GM .

NATURE, 1998, 393 (6681) :146-149

[2]

Surface wrinkles for smart adhesion [J].

Chan, Edwin P. ;

Smith, Erica J. ;

Hayward, Ryan C. ;

Crosby, Alfred J. .

ADVANCED MATERIALS, 2008, 20 (04) :711-+

[3]

Designing model systems for enhanced adhesion [J].

Chan, Edwin P. ;

Greiner, Christian ;

Arzt, Eduard ;

Crosby, Alfred J. .

MRS BULLETIN, 2007, 32 (06) :496-503

[4]

Adhesion of patterned reactive interfaces [J].

Chan, Edwin P. ;

Ahn, Dongchan ;

Crosby, Alfred J. .

JOURNAL OF ADHESION, 2007, 83 (05) :473-489

[5]

Spontaneous formation of stable aligned wrinkling patterns [J].

Chan, EP ;

Crosby, AJ .

SOFT MATTER, 2006, 2 (04) :324-328

[6]

Switchable friction of stimulus-responsive hydrogels [J].

Chang, Debby P. ;

Dolbow, John E. ;

Zauscher, Stefan .

LANGMUIR, 2007, 23 (01) :250-257

[7]

Creton C, 1996, J POLYM SCI POL PHYS, V34, P545, DOI 10.1002/(SICI)1099-0488(199602)34:3<545::AID-POLB13>3.0.CO

[8]

2-I

[9]

Microfabricated adhesive mimicking gecko foot-hair [J].

Geim, AK ;

Dubonos, SV ;

Grigorieva, IV ;

Novoselov, KS ;

Zhukov, AA ;

Shapoval, SY .

NATURE MATERIALS, 2003, 2 (07) :461-463

[10]

Kinetic study of swelling-induced surface pattern formation and ordering in hydrogel films with depth-wise crosslinking gradient [J].

Guvendiren, Murat ;

Burdick, Jason A. ;

Yang, Shu .

SOFT MATTER, 2010, 6 (09) :2044-2049

← 1 2 3 →