title: Supramolecularly Engineered Amphiphilic Macromolecules: Molecular Interaction Overrules Packing Parameters.
abstract: We report molecular interaction-driven self-assembly of supramolecularly engineered amphiphilic macromolecules (SEAM) containing a single supramolecular structure-directing unit (SSDU) consisting of an H-bonding group connected to a naphthalene diimide chromophore. Two such SEAMs, P1-50 and P2-50, having the identical chemical structure and hydrophobic/hydrophilic balance, exhibit distinct self-assembled structures (polymersome and cylindrical micelle, respectively) due to a difference in the H-bonding group (hydrazide or amide, respectively) of the single SSDU. When mixed together, P1-50 and P2-50 adopted self-sorted assembly. For either series of polymers, variation in the hydrophobic/hydrophilic balance does not alter the morphology reconfirming that self-assembly is primarily driven by directional molecular interaction which is capable of overruling the existing norms in packing parameter-dependent morphology control in an immiscibility-driven block copolymer assembly.
authors.affiliation: Polymer Science Unit, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata, 700032, India.
authors.forename: Prithankar
authors.initials: P
authors.lastname: Pramanik
authors.affiliation: Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
authors.forename: Debes
authors.identifier: 0000-0001-5564-2973
authors.initials: D
authors.lastname: Ray
authors.affiliation: Solid State Physics Division, Bhabha Atomic Research Centre, Trombay, Mumbai, 400085, India.
authors.forename: Vinod K
authors.identifier: 0000-0002-2020-9026
authors.initials: VK
authors.lastname: Aswal
authors.affiliation: Polymer Science Unit, Indian Association for the Cultivation of Science, 2A and 2B Raja S. C. Mullick Road, Kolkata, 700032, India.
authors.forename: Suhrit
authors.identifier: 0000-0003-4199-4382
authors.initials: S
authors.lastname: Ghosh
keywords: amphiphilic polymer; cylindrical micelle; fluorescence; polymersome; supramolecular assembly