Synthesis and Bulk Self-Assembly of ABC Star Terpolymers with a Polyferrocenylsilane Metalloblock

Adam Nunns, Caroline A. Ross, Ian Manners*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

34 Citations (Scopus)

Abstract

The synthesis, characterization, and self-assembly of a range of ABC star polymers with arms of polyisoprene, poly(ferrocenylethylmethylsilane), and polystyrene is reported. A library of azide-functionalized polyisoprene and poly(ferrocenylethylmethylsilane) homopolymers were prepared by living anionic polymerization. Polystyrene was synthesized by living anionic polymerization and quenched with 3-triisopropylsilylethynyl-5-trimethylsilylethynylbenzaldehyde, yielding "core-functionalized" polystyrene with two different alkyne units. The azide-functionalized monomers were sequentially attached to core-functionalized polystyrene via copper(I)-catalyzed azide-alkyne cycloaddition reactions, giving polystyrene-polyisoprene-poly(ferrocenylethylmethylsilane) ABC star terpolymers with different compositions and narrow dispersities. Additionally, a chlorosilane route was employed as an alternative means of synthesis. Bulk films of each star terpolymer were prepared, and their self-assembly was analyzed by transmission electron microscopy. The formation of a diverse range of morphologies was observed, including lamellae with alternating cylinders and two different Archimedean tiling patterns.

Original languageEnglish
Pages (from-to)2628-2635
Number of pages8
JournalMacromolecules
Volume46
Issue number7
DOIs
Publication statusPublished - 9 Apr 2013

Keywords

  • ORGANOMETALLIC BLOCK-COPOLYMERS
  • FUNCTIONAL SOFT MATERIALS
  • WALLED CARBON NANOTUBES
  • ORDERED SQUARE ARRAYS
  • THIN-FILMS
  • DIBLOCK COPOLYMERS
  • METHYL-METHACRYLATE
  • TRIBLOCK TERPOLYMER
  • SHAPED TERPOLYMERS
  • DRUG-DELIVERY

Cite this