title: Hierarchical Self-Assembly of Double-Crystalline Poly(ferrocenyldimethylsilane)-block-poly(2-iso-propyl-2-oxazoline) (PFDMS-b-PiPrOx) Block Copolymers.
abstract: The step-wise solution self-assembly of double crystalline organometallic poly(ferrocenyldimethylsilane)-block-poly(2-iso-propyl-2-oxazoline) (PFDMS-b-PiPrOx) diblock copolymers is demonstrated. Two block copolymers are obtained by copper-catalyzed azide-alkyne cycloaddition (CuAAC), featuring PFDMS/PiPrOx weight fractions of 46/54 (PFDMS30-b-PiPrOx75) and 30/70 (PFDMS30-b-PiPrOx155). Nonsolvent induced crystallization of PFDMS in acetone leads in both cases to cylindrical micelles with a PFDMS core. Afterward, the structures are transferred into water for sequential temperature-induced crystallization of the PiPrOx corona, leading to hierarchical double crystalline superstructures, which are investigated using scanning electron microscopy, wide angle X-ray scattering, and differential scanning calorimetry.
authors.affiliation: Laboratory of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.|Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.
authors.forename: Tobias
authors.initials: T
authors.lastname: Rudolph
authors.affiliation: School of Chemistry, University of Bristol, Bristol, BS8 1TS, UK.
authors.forename: Adam
authors.initials: A
authors.lastname: Nunns
authors.affiliation: Laboratory of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.|Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.
authors.forename: Steffi
authors.initials: S
authors.lastname: Stumpf
authors.affiliation: Laboratory of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.|Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Pietsch
authors.affiliation: Laboratory of Organic and Macromolecular Chemistry, Friedrich Schiller University Jena, Humboldtstr. 10, 07743, Jena, Germany.|Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena, Philosophenweg 7, 07743, Jena, Germany.
authors.forename: Felix H
authors.initials: FH
authors.lastname: Schacher
mesh_terms: D002152:Calorimetry, Differential Scanning; D008823:Micelles; D011092:Polyethylene Glycols / Q000737:chemistry; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry*
chemical_list: D008823:Micelles; D011108:Polymers; D011092:Polyethylene Glycols
keywords: anionic ring-opening polymerization; cationic ring-opening polymerization; double crystalline block copolymers; organometallic block copolymers; self-assembly