Journal
JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
Volume 49, Issue 1, Pages 40-44Publisher
JOHN WILEY & SONS INC
DOI: 10.1002/polb.22165
Keywords
adhesion; adhesives; biomaterials; hydrogels; stimuli-sensitive polymers; surfaces; swelling
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Funding
- NSF NIRT [0609182]
- NIH [DE013023, GM086433]
- CIMIT through the U.S. Army [W81XWH-07-2-0011]
- Commonwealth of Massachusetts through the Technology Transfer Center at the University of Massachusetts
- American Heart Association [0835601D]
- NATIONAL INSTITUTE OF GENERAL MEDICAL SCIENCES [R01GM086433] Funding Source: NIH RePORTER
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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
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