Journal
JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY
Volume 55, Issue 4, Pages 640-652Publisher
WILEY
DOI: 10.1002/pola.28445
Keywords
chromogenic; color change; fatigue analysis; fluorescence; luminescence; mechanochromic; polymer; stimuliresponsive; stimuli-sensitive polymers
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Funding
- National Center of Competence in Research (NCCR) Bio-Inspired Materials, Swiss National Science Foundation (SNF)
- Adolphe Merkle Foundation
- European Research Council under the European Union's Seventh Framework Programme (FP7)/ERC grant [ERC-2011-AdG 291490-MERESPO]
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Mechanochromic materials respond to mechanical stimuli with a change of their optical properties. Such materials are of interest for many technological applications and support fundamental research as they help improving the understanding of stress transfer in polymeric objects and aid in the identification of the processes that lead to mechanical failure. In this highlight, different approaches are discussed that permit the design of polymeric materials, which signal mechanical stresses through a chromic response. This highlight emphasizes materials that exhibit mechanically induced changes of their intrinsic absorption or emission properties. These responses almost exclusively originate from changes of molecular structure, conformational rear-rangements, or disruption of intermolecular interactions. (C) 2016 Wiley Periodicals Inc.
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