Cover Picture: Mechanochromism and Mechanical‐Force‐Triggered Cross‐Linking from a Single Reactive Moiety Incorporated into Polymer Chains (Angew. Chem. Int. Ed. 9/2016). Issue 9 (4th February 2016)

• Record Type: Journal Article
• Authors: Zhang, Huan; Gao, Fei; Cao, Xiaodong; Li, Yanqun; Xu, Yuanze; Weng, Wengui; Boulatov, Roman
• Is Part Of: Angewandte Chemie international edition. Volume 55:Issue 9(2016)
• Page Start: 2947
• Page End: 2947
• Publication Date: 2016-02-04
• Subjects: cross-linking -- mechanochromism -- mechanophores -- polymers -- spirothiopyran; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201600533
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract : 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 onpage 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.