Monodisperse Cylindrical Micelles of Controlled Length with a Liquid-Crystalline Perfluorinated Core by 1D “Self-Seeding”

Xiaoyu Li, Bixing Jin, Yang Gao, Dominic W Hayward, Mitchell Winnik, Yunjun Luo, Ian Manners

Research output: Contribution to journalArticle (Academic Journal)

44 Citations (Scopus)
409 Downloads (Pure)

Abstract

Precise control over the morphology and dimensions of block copolymer (BCP) micelles has attracted interest due to the potential of this approach to generate functional nanostructures. Incorporation of liquid crystalline (LC) block can provide additional ways to vary micellar morphologies, but the formation of uniform micelles with controllable dimensions from LC BCPs has not yet been realized. Herein, we report the preparation of monodisperse cylindrical micelles with a LC poly(2-(perfluorooctyl)ethyl methacrylate (PFMA) core via a fragmentation-thermal annealing (F-TA) process, resembling the “self-seeding” process of crystalline BCP micelles. The average length of the cylinders increases with annealing temperature, with a narrow length distribution (Lw/Ln<1.1). We also demonstrate the potential application of the cylinders with LC cores as a cargo-carrier by the successful incorporation of a hydrophobic fluorescent dye tagged with a fluorooctyl group.
Original languageEnglish
Pages (from-to)11392-11396
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number39
Early online date11 Aug 2016
DOIs
Publication statusPublished - 12 Sep 2016

Keywords

  • block copolymers
  • cylindrical micelles
  • liquid crystalline
  • self-assembly
  • self-seeding

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