title: Supramolecular guests in solvent driven block copolymer assembly: From internally structured nanoparticles to micelles.
abstract: Supramolecular interactions between different hydrogen-bonding guests and poly(2-vinyl pyridine)-block-poly (styrene) can be exploited to prepare remarkably diverse self-assembled nanostructures in dispersion from a single block copolymer (BCP). The characteristics of the BCP can be efficiently controlled by tailoring the properties of a guest which preferentially binds to the P2VP block. For example, the incorporation of a hydrophobic guest creates a hydrophobic BCP complex that forms phase separated nanoparticles upon self-assembly. Conversely, the incorporation of a hydrophilic guest results in an amphiphilic BCP complex that forms spherical micelles in water. The ability to tune the self-assembly behavior and access dramatically different nanostructures from a single BCP substrate demonstrates the exceptional versatility of the self-assembly of BCPs driven by supramolecular interactions. This approach represents a new methodology that will enable the further design of complex, responsive self-assembled nanostructures.
authors.affiliation: Materials Research Laboratory and Materials Department, University of California, Santa Barbara, California USA 93106.
authors.forename: Daniel
authors.initials: D
authors.lastname: Klinger
authors.affiliation: Department of Chemistry and Biochemistry, University of California, Santa Barbara, California USA 93106.
authors.forename: Maxwell J
authors.initials: MJ
authors.lastname: Robb
authors.affiliation: Materials Research Laboratory and Materials Department, University of California, Santa Barbara, California USA 93106.
authors.forename: Jason M
authors.initials: JM
authors.lastname: Spruell
authors.affiliation: Materials Research Laboratory and Materials Department, University of California, Santa Barbara, California USA 93106.
authors.forename: Nathaniel A
authors.initials: NA
authors.lastname: Lynd
authors.affiliation: Materials Research Laboratory and Materials Department, University of California, Santa Barbara, California USA 93106 ; Department of Chemistry and Biochemistry, University of California, Santa Barbara, California USA 93106.
authors.forename: Craig J
authors.initials: CJ
authors.lastname: Hawker
authors.affiliation: Department of Chemical and Biomolecular Engineering, the University of Melbourne, Victoria, Australia 3010.
authors.forename: Luke A
authors.initials: LA
authors.lastname: Connal