Thermotropic and lyotropic mesophase formation of poly(ethylene oxide) substituted rod-coil oligomer

Myongsoo Lee, Nam Keun Oh, Moon-Gun Choi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The synthesis and characterization of the rod-coil oligomer consisting of a molecular rod and a poly(ethylene oxide) with degree of polymerization of 12 (5) are presented. The rod-coil oligomer 5 shows a crystalline phase with microphase segregation. However, the complexation of the rod-coil oligomer 5 with LiCF3SO3 induces a thermotiopic smectic liquid crystalline phase. In aqueous solution, the rod-coil oligomer 5 shows various lyotropic mesophases such as lamellar, cubic and cylindrical micellar mesophases, depending on the oligomer concentration. These results characterized by differential scanning calorimetry and optical polarized microscopy are described.

Original languageEnglish
Pages (from-to)511-518
Number of pages8
JournalPolymer Bulletin
Volume37
Issue number4
DOIs
Publication statusPublished - 1996 Jan 1

Fingerprint

ethylene oxide
Polyethylene oxides
oligomers
Oligomers
coils
rods
Crystalline materials
Complexation
Differential scanning calorimetry
Microscopic examination
heat measurement
polymerization
Polymerization
aqueous solutions
microscopy
scanning
Liquids
synthesis
liquids

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Polymers and Plastics
  • Materials Chemistry

Cite this

Lee, Myongsoo ; Oh, Nam Keun ; Choi, Moon-Gun. / Thermotropic and lyotropic mesophase formation of poly(ethylene oxide) substituted rod-coil oligomer. In: Polymer Bulletin. 1996 ; Vol. 37, No. 4. pp. 511-518.
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Thermotropic and lyotropic mesophase formation of poly(ethylene oxide) substituted rod-coil oligomer. / Lee, Myongsoo; Oh, Nam Keun; Choi, Moon-Gun.

In: Polymer Bulletin, Vol. 37, No. 4, 01.01.1996, p. 511-518.

Research output: Contribution to journalArticle

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