Effect of Topological Structures on the Self-Assembly Behavior of Supramolecular Amphiphiles

Langmuir. 2015 Dec 29;31(51):13834-41. doi: 10.1021/acs.langmuir.5b03823. Epub 2015 Dec 15.

Abstract

Three types of azobenzene-based telechelic guest polymers, PEG-azo, azo-PEG-azo, and PEG-azo4, were synthesized by a facile method. Subsequently, a series supramolecular amphiphiles with three distinct topological structures (hemitelechelic, ditelechelic, and quadritelechelic) were constructed through coupling with host polymer β-cyclodextrin-poly(l-lactide) (β-CD-PLLA) by combined host-guest complexation. Research on the self-assembly behavior of these amphiphiles demonstrated that the variation in self-assembly was tuned by the synergistic interaction of hydrophilicity and the curvature of the polymer chains, and very importantly, the topological structure of amphiphiles demonstrated effective control of the self-assembly behavior.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Azo Compounds / chemistry*
  • Hydrophobic and Hydrophilic Interactions
  • Magnetic Resonance Spectroscopy
  • Microscopy, Electron, Transmission
  • Models, Molecular*
  • Molecular Structure
  • Polyethylene Glycols / chemistry
  • Polymers / chemical synthesis*
  • Polymers / chemistry
  • beta-Cyclodextrins / chemistry

Substances

  • Azo Compounds
  • Polymers
  • beta-Cyclodextrins
  • Polyethylene Glycols
  • azobenzene