Thermosensitive behavior of poly(ethylene oxide)-poly[bis(methoxyethoxyethoxy)-phosphazene] block copolymers

Youngkyu Chang, Eric S. Powell, Harry R. Allcock, Sang Mi Park, Chulhee Kim

Research output: Contribution to journalArticlepeer-review

38 Scopus citations


PEO-block-MEEP copolymers were synthesized using the controlled cationic polymerization of phosphoramines. The block copolymers synthesized had molar PEO:MEEP rations of 1:0.49, 1:1.2, 1:2.7, and 1:4.9, with the length of the PEO segment held constant at 5400 g/mol. The self-aggregation characteristics of the block copolymers in water were investigated by using UV/vis spectroscopy and dynamic light scattering. A hydrogel of a block copolymer with a molar PEO:MEEP ratio of 1:4.9 was also synthesized, and its temperature dependency was determined.

Original languageEnglish (US)
Pages (from-to)2568-2570
Number of pages3
Issue number7
StatePublished - Apr 8 2003

All Science Journal Classification (ASJC) codes

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


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