Interlocked Photo‐degradable Macrocycles Allow One‐Off Photo‐triggerable Gelation of Organo‐ and Hydrogelators. Issue 7 (17th January 2018)

• Record Type: Journal Article
• Authors: Tung, Shun‐Te; Cheng, Hung‐Te; Inthasot, Alex; Hsueh, Fang‐Che; Gu, Ting‐Jia; Yan, Pei‐Cong; Lai, Chien‐Chen; Chiu, Sheng‐Hsien
• Is Part Of: Chemistry. Volume 24:Issue 7(2018)
• Page Start: 1522
• Page End: 1527
• Publication Date: 2018-01-17
• Subjects: gels -- photo-cleavage -- photo-patterning -- rotaxanes -- templates; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201705753
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: [2]Rotaxanes displaying one‐off photo‐triggerable gelation properties have been synthesized through the "clipping" of photo‐degradable macrocycles around the amide or urea functionalities of organo‐ and hydrogelators. Irradiation with UV‐light cleaved the photo‐labile macrocyclic components from the [2]rotaxanes, resulting in the free gelators being released into solution and, thereafter, forming gels. When the rate of gelation was sufficiently rapid, selective gelation of specific regions of the solution—and, indeed, photo‐patterning of the solution—was possible. Abstract : "Clipping" a photo‐degradable macrocycle around the amide or urea functionalities of organo‐ and hydrogelators has provided [2]rotaxanes displaying one‐off photo‐triggerable gelation properties‐in one case allowing photo‐patterning of a solution with specific "letters" of gel.