期刊
MACROMOLECULAR MATERIALS AND ENGINEERING
卷 294, 期 4, 页码 244-249出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/mame.200800299
关键词
copolymerization; cyano-OPVs; dyes/pigments; polyesters; stimuli-sensitive polymers
资金
- National Science Foundation (NSF) [DMI-0428208]
Cyano-OPV moieties were covalently incorporated into a PETG backbone to create ductile amorphous polymers which change their PL and absorption color as a function of deformation. The cyano-OPV concentration was systematically varied, and the composition was related to the material's optical response. This approach afforded PETG/dye copolymers which upon annealing display characteristics of aggregated dye molecules. The materials exhibit a significant color change upon compression, consistent with disassembly of the dye aggregates. This mechanochromic response is irreversible and can be detected by the unassisted eye.
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