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Cover Picture: Mechanochromism and Mechanical‐Force‐Triggered Cross‐Linking from a Single Reactive Moiety Incorporated into Polymer Chains (Angew. Chem. Int. Ed. 9/2016)
Author(s) -
Zhang Huan,
Gao Fei,
Cao Xiaodong,
Li Yanqun,
Xu Yuanze,
Weng Wengui,
Boulatov Roman
Publication year - 2016
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201600533
Subject(s) - polymer , materials science , moiety , cover (algebra) , mechanical load , polymer chemistry , polymer science , composite material , chemistry , stereochemistry , mechanical engineering , engineering
Just as mechanical force applied to the strings of a violin produces beautiful sounds, mechanical stress acting on polymers leads to interesting chemical reactions. In their Communication on page 3040 ff., W. Weng et al. show that when mechanically loaded, a spirothiopyran‐containing polymer turns bright green and undergoes cross‐linking. Two distinct chemical responses to a mechanical load are combined in a single reactive site.