Photo-driven morphological transformations of supramolecular polymers actuated by an overcrowded alkene switch. Issue 39 (12th September 2018)

• Record Type: Journal Article
• Authors: Liang, Wen-Jing; Yu, Jing-Jing; Zhang, Qi; Ma, Chang-Shun; Shi, Zhao-Tao; Qu, Da-Hui
• Is Part Of: Polymer chemistry. Volume 9:Issue 39(2018)
• Page Start: 4808
• Page End: 4812
• Publication Date: 2018-09-12
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/c8py01070f
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : A novel light-responsive supramolecular polymer was actuated by an overcrowded alkene switch. trans OAS-Upy could form well-defined nanospheres in chloroform, which would be transformed into worm-like assemblies after UV irradiation. Abstract : A novel light-responsive supramolecular polymer was demonstrated from an overcrowded alkene switch (OAS) mounted with two rigid 2-ureido-4-pyrimidinone (UPy) groups. By strong quadruple hydrogen bonding interactions, trans OAS-Upy could form well-defined nanospheres in chloroform, which would be transformed into worm-like assemblies after UV irradiation. Moreover, the inverse process of this system could be achieved by exposure to heat.