Self-assembled helical columnar superstructures with selective homochirality. Issue 22 (11th May 2017)

• Record Type: Journal Article
• Authors: Mu, Bin; Li, Qian; Li, Xiao; Chen, Jian; Fang, Jianglin; Chen, Dongzhong
• Is Part Of: Polymer chemistry. Volume 8:Issue 22(2017)
• Page Start: 3457
• Page End: 3463
• Publication Date: 2017-05-11
• Subjects: Polymers -- Periodicals; Macromolecules -- Periodicals; Polymerization -- Periodicals; 547.705
• DOI: 10.1039/c7py00471k
• Languages: English
• ISSNs: 1759-9954

Abstract

Abstract : Helical columnar polymeric complexes with selective homochirality have been achieved from side-chain discotic liquid crystalline polymers doped with chiral acceptors. Abstract : Electron donor–acceptor (EDA) complexes of triphenylene (TP) based side-chain discotic liquid crystalline polymers doped with chiral acceptors exhibit a remarkable supramolecular polymer effect upon reaching a critical doping amount, complying with the discrete columnar stack (DCS) based modular assembly mechanism. Furthermore, selective left- or right-handed homochirality determined by the enantiomeric nature of chiral dopants has been achieved, with a helical polymer backbone surrounded by chiral supramolecular columns through modular assembly between the chiral dopant and DCS subunits, revealing a strong circular dichroism (CD) activity reminiscent of the fascinating hierarchically assembled superstructure of tobacco mosaic virus (TMV). Such polymeric EDA stoichiometric complexation and generation of single-handedness provides inspiring insight into and guidance for constructing various chiral functional materials via non-covalent interactions in a facile way, and also enhances in-depth understanding of the origin of biological helical structures and chiral basis of life.