Induction of Supramolecular Helical Handedness in a Chemical Reaction Directed Self‐Healable Soft Material. Issue 34 (4th December 2017)

• Record Type: Journal Article
• Authors: Reja, Antara; Biswas, Ankan; Yadav, Jonu; Dev, Dharm; Das, Apurba K.
• Is Part Of: ChemistrySelect. Volume 2:Issue 34(2017)
• Page Start: 10984
• Page End: 10989
• Publication Date: 2017-12-04
• Subjects: C3 symmetric -- discotic self-assembly -- D−L enantiomer -- helical handedness -- self-healing gel; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201702212
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: Thixotropic and self‐healable supramolecular gel with nanohelical morphological features of discotic C3 symmetric benzene‐1, 3, 5‐tricarboxylic acid coupled with (L)‐ and (D)‐phenylalanine were achieved by hydroxyl anion catalysed methyl ester hydrolysis in presence of lithium ions. The hydrolysis of methyl ester and subsequent formation of gel are highly dependent on metal ions. The arrangement of the molecular building blocks and increasing the structural complexity during the origin of the supramolecular structures from the monomeric units by a chemical reaction act as the executive parameters to determine the handedness of macroscopic chirality. Abstract : In situ gel formation of C3 symmetric benzene‐1, 3, 5‐tricarboxamides of phenylalanine methyl ester was occurred during hydrolysis by LiOH solution. However, free flowing opaque solution was observed by NaOH and KOH solution. Counter cations (Li + ) of the acids play a crucial role for the formation of supramolecular gels. The viscoelastic property, mechanical strength and self‐healing nature of gel were investigated by rheometer.