Dielectric relaxation of liquid-crystalline polyrotaxane

A. Inomata, H. Ishibashi, T. Nakajima, Y. Sakai, Masatoshi Kidowaki, T. Shimomura, K. Ito

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

A new supramolecular system, liquid-crystalline polyrotaxane (LCPR), has been recently prepared by introduction of 4-cyano-4′-n-pentylbiphenyl (5CB) groups to the cyclic molecules of a polyrotaxane (PR) consisting of polyethylene glycol (PEG) and α-cyclodextrin (α-CD). Here we measured and compared the dielectric relaxations of PR and LCPR in solid state to investigate molecular motions of α-CD in PR and LCPR. It was found that PR exhibited a single relaxation mode while LCPR had two modes. These results suggested that the relaxation mode in PR would be due to the sliding fluctuation of α-CD along the axis chain and that the other mode in LCPR should arise from the rotational fluctuation of α-CD modified by 5CB.

Original languageEnglish
Article number66004
JournalEPL
Volume79
Issue number6
DOIs
Publication statusPublished - 2007 Sep 1
Externally publishedYes

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liquids
sliding
glycols
polyethylenes
solid state
molecules

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Inomata, A., Ishibashi, H., Nakajima, T., Sakai, Y., Kidowaki, M., Shimomura, T., & Ito, K. (2007). Dielectric relaxation of liquid-crystalline polyrotaxane. EPL, 79(6), [66004]. https://doi.org/10.1209/0295-5075/79/66004

Dielectric relaxation of liquid-crystalline polyrotaxane. / Inomata, A.; Ishibashi, H.; Nakajima, T.; Sakai, Y.; Kidowaki, Masatoshi; Shimomura, T.; Ito, K.

In: EPL, Vol. 79, No. 6, 66004, 01.09.2007.

Research output: Contribution to journalArticle

Inomata, A, Ishibashi, H, Nakajima, T, Sakai, Y, Kidowaki, M, Shimomura, T & Ito, K 2007, 'Dielectric relaxation of liquid-crystalline polyrotaxane', EPL, vol. 79, no. 6, 66004. https://doi.org/10.1209/0295-5075/79/66004
Inomata A, Ishibashi H, Nakajima T, Sakai Y, Kidowaki M, Shimomura T et al. Dielectric relaxation of liquid-crystalline polyrotaxane. EPL. 2007 Sep 1;79(6). 66004. https://doi.org/10.1209/0295-5075/79/66004
Inomata, A. ; Ishibashi, H. ; Nakajima, T. ; Sakai, Y. ; Kidowaki, Masatoshi ; Shimomura, T. ; Ito, K. / Dielectric relaxation of liquid-crystalline polyrotaxane. In: EPL. 2007 ; Vol. 79, No. 6.
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