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

Myongsoo Lee; Nam Keun Oh; Moon Gun Choi

doi:10.1007/BF00556813

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

Myongsoo Lee, Nam Keun Oh, Moon Gun Choi

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

7 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 language	English
Pages (from-to)	511-518
Number of pages	8
Journal	Polymer Bulletin
Volume	37
Issue number	4
DOIs	https://doi.org/10.1007/BF00556813
Publication status	Published - 1996 Oct

All Science Journal Classification (ASJC) codes

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

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

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.",

author = "Myongsoo Lee and Oh, {Nam Keun} and Choi, {Moon Gun}",

year = "1996",

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doi = "10.1007/BF00556813",

language = "English",

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pages = "511--518",

journal = "Polymer Bulletin",

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T1 - Thermotropic and lyotropic mesophase formation of poly(ethylene oxide) substituted rod-coil oligomer

AU - Lee, Myongsoo

AU - Oh, Nam Keun

AU - Choi, Moon Gun

PY - 1996/10

Y1 - 1996/10

N2 - 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.

AB - 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.

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DO - 10.1007/BF00556813

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JO - Polymer Bulletin

JF - Polymer Bulletin

SN - 0170-0839

IS - 4

ER -

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

Abstract

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