A photo-switchable dual-modality linear supramolecular polymer based on host−guest interaction of cyclodextrin and pseudorotaxane. (February 2018)

• Record Type: Journal Article
• Authors: Chang, Dongdong; Yan, Wenhao; Han, Dan; Wang, Qiaochun; Zou, Lei
• Is Part Of: Dyes and pigments. Volume 149(2018)
• Page Start: 188
• Page End: 192
• Publication Date: 2018-02
• Subjects: Supramolecular polymer -- Host−guest interaction -- Pseudorotaxane -- Photo-switchable; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2017.09.064
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: A novel light-driven noncovalent–covalent switchover linear supramolecular polymer was constructed in aqueous solution via the host–guest molecular recognition of γ-cyclodextrin and cucurbit[7]uril-based pseudo[3]-rotaxane containing two photoresponsive coumarin moieties. This supramolecular polymer also could convert between noncovalent polymers and corresponding covalent polymers due to the photo-induced reversible dimerization and cleavage properties of the coumarin moiety in the cavity of γ-cyclodextrin. So the fabrication of linear supramolecular polymer based on the molecular shuttle could provide more possibility for increasing the performance of supramolecular polymer with well-defined functionalities. Graphical abstract: Highlights: Novel light-driven noncovalent–covalent switchover linear supramolecular polymer was prepared by host-guest interaction. The polymerization and morphology of supramolecular polymer were investigated. The fabrication of linear supramolecular polymer based on the molecular shuttle could have well defined functionalities.