New amphiphilic poly[bis(2,2,2-trifluoroethoxy)phosphazene]/ poly(propylene glycol) triblock copolymers: Synthesis and micellar characteristics

Harry R. Allcock, Yun Cho Song, Lee B. Steely

Research output: Contribution to journalArticlepeer-review

33 Scopus citations

Abstract

Amphiphilic triblock copolymers were synthesized with two hydrophobic poly[bis(2,2,2-trifluoroethoxy)phosphazene] blocks linked to a central poly(propylene glycol) block. These were synthesized via the cationic polymerization of chlorophosphoranimines and coupling of these blocks to a diamine functionalized poly(propylene glycol) followed by macromolecular substitution. The micellar characteristics of these amphiphilic triblock copolymers were examined using fluorescence techniques, dynamic light scattering, and transmission electron microscopy. The critical micelle concentrations (cmcs) of PN-PPG-PN polymeric micelles determined by a fluorescence technique were in the range 9.5-12.4 mg/L. The mean diameters of the micelles of the PN-PPG-PN polymeric micelles, measured by dynamic light scattering, were between 197 and 364 nm.

Original languageEnglish (US)
Pages (from-to)8334-8338
Number of pages5
JournalMacromolecules
Volume39
Issue number24
DOIs
StatePublished - Nov 28 2006

All Science Journal Classification (ASJC) codes

  • Organic Chemistry
  • Polymers and Plastics
  • Inorganic Chemistry
  • Materials Chemistry

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