Preparation and property of liquid crystalline slide-ring gels

Masatoshi Kidowaki, Takao Nakajima, Jun Araki, Toshiyuki Kataoka, Christian Ruslim, Changming Zhao, Kohzo Ito

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The slide-ring gels formed by crosslinking of polyrotaxane (PR) composed of polyethylene glycol and α-cyclodextrin (α-CD) have sliding crosslinks. The gels show good properties in tensibility and strength compared to conventional chemical and physical gels. On the other hand, liquid crystalline gels are hybrid materials having both properties of gels and liquid crystals (LCs). In this study, LC-PR and their crosslinked product of LC slide-ring gels were prepared by introducing cyanobiphenyl (CNBP) groups into the α-CDs of PR. The PR substituted by CNBP through alkyl chain exhibits LC phase. The phase transition behavior of the LC-PR was observed by polarized optical microscope. Schlieren texture, typical for nematic phase, was observed at room temperature under crossed polarizers. The nematic to isotropic phase transition was observed with increasing temperature. Interestingly, the LC-PR dissolved in a low molecular weight nematic LC, 4-cyano-4′-pentylbipheny, and the solution formed a slide-ring gel by adding a crosslinking reagent.

Original languageEnglish
Title of host publicationPolymer Preprints, Japan
Pages3931-3932
Number of pages2
Volume55
Edition2
Publication statusPublished - 2006
Externally publishedYes
Event55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama
Duration: 2006 Sep 202006 Sep 22

Other

Other55th Society of Polymer Science Japan Symposium on Macromolecules
CityToyama
Period06/9/2006/9/22

Fingerprint

Liquid crystals
Gels
Crystalline materials
Liquids
Crosslinking
Phase transitions
Nematic liquid crystals
Hybrid materials
Cyclodextrins
Polyethylene glycols
Microscopes
Textures
Molecular weight
Temperature

Keywords

  • Cyclodextrin
  • Liquid crystalline gel
  • Polyethylene glycol
  • Polyrotaxane
  • Slide ring gel
  • Supramolecule

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kidowaki, M., Nakajima, T., Araki, J., Kataoka, T., Ruslim, C., Zhao, C., & Ito, K. (2006). Preparation and property of liquid crystalline slide-ring gels. In Polymer Preprints, Japan (2 ed., Vol. 55, pp. 3931-3932)

Preparation and property of liquid crystalline slide-ring gels. / Kidowaki, Masatoshi; Nakajima, Takao; Araki, Jun; Kataoka, Toshiyuki; Ruslim, Christian; Zhao, Changming; Ito, Kohzo.

Polymer Preprints, Japan. Vol. 55 2. ed. 2006. p. 3931-3932.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kidowaki, M, Nakajima, T, Araki, J, Kataoka, T, Ruslim, C, Zhao, C & Ito, K 2006, Preparation and property of liquid crystalline slide-ring gels. in Polymer Preprints, Japan. 2 edn, vol. 55, pp. 3931-3932, 55th Society of Polymer Science Japan Symposium on Macromolecules, Toyama, 06/9/20.
Kidowaki M, Nakajima T, Araki J, Kataoka T, Ruslim C, Zhao C et al. Preparation and property of liquid crystalline slide-ring gels. In Polymer Preprints, Japan. 2 ed. Vol. 55. 2006. p. 3931-3932
Kidowaki, Masatoshi ; Nakajima, Takao ; Araki, Jun ; Kataoka, Toshiyuki ; Ruslim, Christian ; Zhao, Changming ; Ito, Kohzo. / Preparation and property of liquid crystalline slide-ring gels. Polymer Preprints, Japan. Vol. 55 2. ed. 2006. pp. 3931-3932
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