Pinning effect of mixed cellulose ester membrane on appearance of cholesteric blue phases

Masayoshi Ojima, Takeshi Noma, Hiroaki Asagi, Akihiko Fujii, Masanori Ozaki, Hirotsugu Kikuchi

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Temperature range of cholesteric blue phase I (BP I) was expanded by infiltrating liquid crystal (LC) that exhibits BP I and BP II into a mixed cellulose ester membrane (MCEM). Cooling rate dependence of the BP I temperature range was investigated, which indicated that the expansion of BP temperature range upon infiltrating LC into MCEM was induced by the pinning effect at network surfaces in the MCEM. In particular, the temperature range of BP I infiltrated in 0.2-μm MCEM is eight times wider than that of pure BP LC compound. Pore size dependence of expansions was also investigated.

Original languageEnglish
Article number021502
JournalApplied Physics Express
Volume2
Issue number2
DOIs
Publication statusPublished - Feb 1 2009

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cellulose
esters
Cellulose
Esters
Liquid crystals
membranes
Membranes
liquid crystals
Temperature
expansion
temperature
Pore size
Cooling
porosity
cooling

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Pinning effect of mixed cellulose ester membrane on appearance of cholesteric blue phases. / Ojima, Masayoshi; Noma, Takeshi; Asagi, Hiroaki; Fujii, Akihiko; Ozaki, Masanori; Kikuchi, Hirotsugu.

In: Applied Physics Express, Vol. 2, No. 2, 021502, 01.02.2009.

Research output: Contribution to journalArticle

Ojima, Masayoshi ; Noma, Takeshi ; Asagi, Hiroaki ; Fujii, Akihiko ; Ozaki, Masanori ; Kikuchi, Hirotsugu. / Pinning effect of mixed cellulose ester membrane on appearance of cholesteric blue phases. In: Applied Physics Express. 2009 ; Vol. 2, No. 2.
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